Ottawa River Kayaking Guide: Best Launch Spots from Mattawa to Ottawa

Ottawa River Kayaking Guide: Best Launch Spots from Mattawa to Ottawa

There is a river that has followed us everywhere we have lived. Before we had a shop, before we had kayaks, before any of this existed, Scott and I found ourselves drawn to the water. Since 2015, every apartment, every condo, every home we have shared has looked out over the Ottawa River. It was never a coincidence. It was where we always wanted to be.

I have watched this river in every season. I have seen it glassy and golden at sunrise, churned up and grey under October skies, locked under a thick sheet of ice in February. I have paddled it on perfect summer evenings when the Quebec hills glow across the water, and on windy afternoons when I had no business being out there at all. It has been the backdrop of our relationship, the view from our living room windows, the reason we chose Arnprior when it came time to put down roots. To say the Ottawa River holds a special place in our hearts is a bit of an understatement.

This blog is our love letter to it. We want to share the history that runs as deep as the river itself, the towns that have grown along its banks, and the spots that have meant the most to us. We will take you from the dramatic hills of Mattawa all the way to the flatwater near Hawkesbury, town by town, with launch points, local highlights, and a few personal notes along the way.

Before you go

The Ottawa River is vast and powerful. It can be calm and glassy in the morning and rough and windswept that same afternoon. Always wear your PFD, carry a Transport Canada-approved safety kit, paddle within your skill level, and let someone know your plan. There are no lock systems along the Ottawa River, so if you are planning to move between sections, you will need to portage around dams or treat each section as a separate outing.

A River Built on History

Long before any of the towns we are about to visit existed, the Ottawa River was one of the great highways of North America. The Algonquin people, who called it Kichi Sipi, meaning "the Great River," travelled its length for thousands of years, hunting, fishing, trading, and living along its shores. From a strategic base on Allumette Island, one group, the Kichisipirini, held such command of the river that they charged other nations tolls for passage. The river belonged to them, and they knew it intimately.

The first Europeans to travel the upper Ottawa included the coureur de bois Etienne Brule, around 1610, followed by Samuel de Champlain in 1615, who paddled west in search of the interior. For the next two centuries, the Ottawa was the primary route for the fur trade, carrying voyageurs in great birchbark canoes laden with beaver pelts from the western interior back to Montreal. Where the Mattawa River meets the Ottawa, they turned west toward Lake Nipissing and the French River, following a water highway that stitched together a continent.

By the 19th century, logs had replaced furs. The Ottawa River became the spine of a booming timber industry, with vast log booms floating downstream to the sawmills of Bytown (now Ottawa) and beyond. The towns that grew up along its banks, Mattawa, Deep River, Petawawa, Pembroke, Arnprior, were all shaped by that industry. The river made them.

Today, the dams that tamed the river's wildest sections have quieted much of what was once a churning series of rapids and falls. But the Ottawa is still a force of nature. Still wide, still powerful, still capable of commanding your full attention the moment you put a paddle in the water.

"The Ottawa River is the only river in Canada to traverse four major geological subdivisions. It begins in the Canadian Shield, crosses the Ottawa-Bonnechere Graben, moves through the St. Lawrence Lowlands, and meets the sea at the mouth of the St. Lawrence."

A river unlike any other in the country

Mattawa: The Meeting of the Waters

Mattawa sits at the confluence of the Mattawa and Ottawa Rivers, and its very name tells the story: in Algonquin, it means "meeting of waterways." This is where the great canoe route to the west turned, where voyageurs trading in from the east made their pivot toward Lake Nipissing and the interior. It is one of the most historically significant river junctions in Canada, and standing at the water's edge here, you feel it.

The Mattawa River, which flows into the Ottawa here, is a designated Canadian Heritage River, and for good reason. It follows a 600 million-year-old geological fault line through the Canadian Shield, and paddlers today use the same portages that haven't changed in over 300 years. At Paresseux Falls, you can see the remnants of an old timber chute, and at Portage de Talon, glacial potholes left behind by a post-glacial spillway that once drained the Great Lakes into the Ottawa are still visible.

A 16-foot wooden statue of Big Joe Mufferaw, folk hero of the Ottawa Valley, stands tall at Explorer's Point in Mattawa, joined by a cast of other historical figures scattered around the waterfront. If you are stopping in Mattawa, this is worth a wander.

Paddling from Mattawa

  • Explorer's Point / Mattawa Marina: a natural launching spot right in town, at the confluence of both rivers. This is a beautiful place to paddle the lower Mattawa before it meets the Ottawa, with relatively calm water and outstanding scenery.
  • Mattawa River Provincial Park: for those looking to do a more serious river trip, the Mattawa offers a multi-day route from North Bay with 9 to 14 portages depending on water levels, ending right here in town. Not for the faint of heart, but spectacular for experienced paddlers.

⚠️ A severe storm in June 2025 caused significant damage to Samuel de Champlain Provincial Park along the Mattawa River corridor. Check with local outfitters before heading out, as some portages may still be affected by fallen trees and debris.


Deep River: Big Views and White Sandy Beaches

Deep River is one of those towns that surprises you. Tucked along the Ottawa River with the Laurentian Mountains rising dramatically across the water on the Quebec side, it is one of the most breathtaking backdrops I have seen while paddling in Ontario. The bay between Lamure Beach and the marina is pure magic, dotted with sailboats and houseboats, surrounded by sandy beaches and forested trails. The sunsets here will stop you in your tracks.

Mount Martin towers in the distance, and the surrounding area is rich in wildlife, beaver ponds, and a mix of deciduous and coniferous forests. If you have a capable touring kayak and want to stretch your arms, crossing over to the Quebec shore rewards you with kilometre after kilometre of white sandy beaches that feel almost untouched.

Where to launch in Deep River

  • Lamure Beach: one of three launch spots clustered close together near town, with a beautiful sandy beach and easy water access. Keep an eye on boat traffic as it can be a busy stretch of river.
  • Deep River Marina: the small beach beside the marina is a well-used launch point with free parking nearby.

Have a little time to spare after your paddle? Deep River has some lovely spots worth visiting: rECo Refillery, re.Planted Farm and Florals, and Sweetened By Shelly are three of my personal favourites in town.

From Deep River, one of the most iconic paddles on the Ottawa River becomes accessible: Oiseau Rock. Towering 150 metres high above the Quebec shoreline, across from Chalk River, Oiseau Rock (Migizi Kiishkaabikaan) is a sacred Algonquin site adorned with ancient pictographs. It is approximately 13 kilometres from Lamure Beach in Deep River. Paddling beneath this cliff is a reverent, humbling experience.

Please respect this sacred site

Do not touch the rock face or attempt to climb it. Oiseau Rock holds deep cultural and spiritual meaning for the Algonquin people. Approach with care and gratitude for the opportunity to witness it.


Petawawa: Hidden Gem on the Ontario Shore

Known for its sandy shoreline, quiet coves, and easy river access, Petawawa is a hidden gem for paddlers. The town sits at the confluence of the Petawawa and Ottawa Rivers, and the paddling here is diverse enough to keep you busy for a full day or more.

Petawawa has a long military history, home to Canadian Forces Base Petawawa, one of the oldest and largest military bases in Canada, established in 1905. Canada's first forestry research station was also established near Petawawa in 1918, to study the effects of logging, disease, and fire on the forests that the Ottawa River had helped strip over the previous century.

Where to launch in Petawawa

  • Petawawa Point Beach: a paddler's paradise with a sandy beach, calm coves, boat launch, public washrooms, and kayak rentals right on site. From here, hook left to explore Black Bay, head out to remote islands, or paddle upstream.
  • Waterfront Park: another popular launch with good parking and an easy entry to the river.

If you are up for an adventure from Petawawa Point, paddle all the way to Fort William, about 5.5 kilometres across to the Quebec side. Also known as Hotel Pontiac, this historic resort started as a Hudson's Bay Company fur trading post in 1823. It is now a local gem with a laid-back tavern and patio you can beach right at. Completely worth the paddle.

Just upstream of Petawawa, watch for Ile Morrison, which has rapids on either side. Steer well clear of the island and keep to the west side of Cotnom Island for safer passage. From there, paddling downstream into Hazley Bay, a serene, cottage-lined inlet about 7 kilometres from Waterfront Park, is one of our favourite outings in the area.

Pembroke: Heart of the Ottawa Valley

Pembroke calls itself "the heart of the Ottawa Valley," and it earns the title. Established as the county government seat in 1858, it was a bustling timber town in the early 20th century, with massive log booms floating downstream from the upper river toward the local sawmills. Today, its historic downtown is home to one of Canada's largest outdoor art galleries, with 32 full-scale murals depicting the history of the area. It is also famously known as Hockeytown Canada.

The waterfront in Pembroke was beautifully redeveloped as part of the city's Millennium Project, with a new bandstand, amphitheatre, and boardwalk offering an idyllic setting overlooking the Ottawa River. Summer evenings here, with Waterfront Live presenting free performances by local musicians, are genuinely special.

Paddling from the marina, head upstream along the many bays and coves. If you make it past the Pembroke Golf Club, you will come across a cluster of small islands scattered around a point just before MacGregor Bay, a really cool spot to paddle through, but watch your depth around the islands.

Just downstream of Pembroke

The Rocher Fendu section of the Ottawa River, near Pembroke, is well known for whitewater rafting. The area around Beachburg and Foresters Falls offers some of the biggest whitewater east of the Rocky Mountains and has produced world-class paddlers. If flatwater is your preference, stick close to the Ontario shoreline and avoid the main channel rapids.


Braeside: A Quiet Sunset Paddle

Braeside sits just upstream of Arnprior, and it is one of those spots that only the locals really know about. There is a dock and a boat launch here for easy launching, but it is a quiet place. This is a wide and open section of the Ottawa River without a ton of small bays or inlets to explore, but it is an absolutely beautiful spot for sunsets. On a calm evening, watching the sun drop below the horizon from the water here is genuinely breathtaking.

Where to launch in Braeside

  • Braeside Beach: a stony beach with a dock and boat launch. Easy parking, quiet surroundings, and spectacular evening light.

Arnprior: Where the Rivers Meet (and My Heart Lives)

I am not going to pretend to be impartial here. Arnprior is home, and the Ottawa River as it runs through and around this town is my favourite stretch of water in the world. Situated at the confluence of the Ottawa, Madawaska, and Mississippi Rivers (with the Mississippi joining the Ottawa just a few kilometres downstream), Arnprior lives up to its motto: "Where the Rivers Meet." Every paddle I have done from here has given me something: a heron standing still as a statue, a beaver slapping its tail at dusk, a muskie rolling in the shallows, or just the particular quiet of being on the water in a place you love.

For a full guide to launching, paddling, eating, and exploring in Arnprior, I have written a dedicated blog for Ottawa Valley Tourism that covers it all in detail. Read it here: Launch and Lunch in Arnprior.

Quick-reference launch spots in Arnprior

  • Robert Simpson Park Beach: 200m of sandy beach at the confluence of the Ottawa and Madawaska Rivers, with washrooms, parking, and a splash pad nearby.
  • McLean Avenue Beach: a quieter 76-metre stretch perfect for those who want a more relaxed launch. OVAP operates a kiosk here on weekends through summer.

Constance Bay: Sheltered and Serene

West of Ottawa and east of Arnprior, Constance Bay is a lovely day-trip option that often gets overlooked. This friendly riverside community features a wide, sandy beach that is perfect for swimming and launching. Once on the water, head west and stay close to the shoreline as you enter Buckham's Bay, a sheltered area dotted with waterfront homes and cottages. The water here is typically calm and easy to paddle, making it one of the more relaxed stretches of the Ottawa for paddlers of all skill levels.

Where to launch at Constance Bay

  • Constance Bay Beach: a wide sandy beach with easy access and free parking. A great family-friendly option.

Ottawa: Paddling the Capital

Paddling through downtown Ottawa is one of those experiences that is hard to describe to someone who hasn't done it. You are on the water, looking up at the Parliament Buildings, gliding past the Rideau Canal Locks and the historic Earnscliffe Estate, watching osprey circle above the same river that explorers, voyageurs, and lumber barons once depended on entirely. The Ottawa River here is wide, historic, and surprisingly accessible.

Launching from the Ottawa side

The base of the Rideau Canal Locks (Locks 1 to 8) is one of the most iconic launch spots in the city. Tour boats depart from the long stretch of docking here, and paddlers can launch from this same area. Be prepared to carry your kayak or paddleboard down a lot of stairs.

Prefer to skip the stairs? Head across to Port de plaisance Jacques-Cartier (Marina de Hull) on the Gatineau side, which offers a gentle, accessible boat launch and free parking. From there you can easily explore both shorelines.

⚠️ Heading west from the locks, be mindful of the light rapids between Parliament Hill and the Portage Bridge. These are not suitable for folding kayaks like the Oru Lake or basic inflatables. Experienced paddlers in capable touring or hardshell kayaks can pass safely in normal conditions, but exercise caution and check conditions before launching.

Heading east: a historic shoreline paddle

Paddling east from the locks, you will pass under the Alexandra Bridge and glide by the Ottawa Rowing Club, Earnscliffe National Historic Site, Rideau Falls, and the Prime Minister's Official Residence at 24 Sussex Drive. This is both historic and genuinely serene, a remarkable way to see the capital.

Two side routes worth exploring in this area are Decharge du Lac Leamy, a quiet canal that winds past some intriguing ruins and leads to Lac Leamy itself, and Ruisseau de la Brasserie, a narrow creek connecting the Ottawa River to the far side of Lac Leamy through Parc Desjardins and under five separate bridges. Both are a wonderful change of pace from the main river.

Petrie Island: the east end gem

Located in Ottawa's east end, Petrie Island is ideal for beginner paddlers and one of our favourite spots near the city. A wide sandy beach with multiple launch options, calm inlets and winding canals to the west, abundant wildlife, and sunsets that are genuinely unforgettable. Parking is currently free while the town installs pay machines, so enjoy it while it lasts. From the main Ottawa River here, you can paddle east for as far as your stamina allows, all the way to Hawkesbury if you are ambitious.

Ottawa launch spots at a glance

  • Base of Rideau Canal Locks: iconic, historic, lots of stairs
  • Port de plaisance Jacques-Cartier, Gatineau: accessible ramp, free parking, easy entry
  • Petrie Island, Ottawa east end: best for beginners, sandy beach, calm inlets
  • Westboro Beach: popular with Ottawa locals, easy city access, watch for whitewater to the west

Clarence-Rockland and Hawkesbury: The Eastern Stretch

Honest truth: the eastern section of the Ottawa River between Ottawa and Hawkesbury is on my list to explore more thoroughly. I know the western valley well, but I have spent far less time on the water east of the capital. What I can tell you is that this stretch of river is wider, calmer, and flanked by farmland and mixed hardwood forest as the Ottawa winds toward the St. Lawrence.

In Clarence-Rockland, Parc du Reveil is reported to be a lovely accessible launch point on the Ottawa River with ample parking and beautiful views. Du Moulin Park nearby offers roughly 3 kilometres of scenic riverside walking trails as well. Hamilton Island near Hawkesbury is a favourite of local paddlers, with a straightforward tour around the island and good access from the Hawkesbury waterfront.

These towns are on my paddle bucket list, and I look forward to sharing more once I have done the river justice from the water. Watch this space.

Always growing

This guide is updated as we explore new sections of the river and discover new launch spots along the way. Bookmark it and check back each season, there is always something new to find!


What to Paddle and What to Bring

The Ottawa River is not one paddle. It is dozens of paddles, each one different depending on where you are on the river, what the wind is doing, and what kind of boat you are in. For the calm, protected sections near Constance Bay, Braeside, and around the Ottawa city shoreline, most kayaks and paddleboards will serve you well. For the wider, more exposed sections near Deep River and Petawawa, a longer, more capable touring kayak is strongly recommended.

At OVAP, we carry a full range of hardshell sea kayaks and touring kayaks purpose-built for paddling big water like the Ottawa. Here are some of our favourites for this river specifically.

Hardshell Sea Kayaks & Touring Kayaks

  • Delta 14: A nimble, responsive hardshell that punches above its size. Great for day trips on the Ottawa, with a skeg or rudder option depending on how you like to trim your boat in crosswinds.
  • Delta 15.5: One of the most popular all-around touring kayaks we carry. Handles everything from sheltered bays to open river crossings with ease, and it tracks beautifully.
  • Delta 16: Step up in length and you step up in efficiency. The Delta 16 eats distance for breakfast and is a natural fit for longer Ottawa River journeys like Petawawa to Pembroke or Arnprior to Constance Bay.
  • Delta 17: Our longest and most capable hardshell touring kayak. Built for serious paddlers who want speed, stability, and the ability to load up for multi-day river trips. Phenomenal on the big open stretches near Deep River and Petawawa.
  • Hurricane Sojourn 146 (the kayak I use myself!): A lightweight thermoform sea kayak with a full touring hull. Easier to cartop than most hardshells, comfortable for longer days on the water, and a great value for a boat in this class.
  • Perception Carolina 14: A classic entry into sea kayaking. The Carolina 14 is stable, forgiving, and a wonderful first hardshell for paddlers stepping up from recreational or inflatable kayaks. Excellent for the calmer sections of the Ottawa.

Not ready for a hardshell, or need something you can pack into your car without a roof rack? We also carry folding and nesting kayaks that are genuinely capable on big water like the Ottawa.

Portable Touring Kayaks

  • TRAK 2.0: The most versatile portable kayak we carry, bar none. The TRAK 2.0 folds into two bags, sets up in under 20 minutes, and paddles like a true sea kayak. We demo these at McLean Beach regularly, and the reaction is always the same: people can't believe how good it feels on the water. For a river like the Ottawa, the TRAK is genuinely at home.
  • Pakayak Bluefin: A 14-foot hardshell sea kayak that nests into itself for storage and transport. No assembly required, no fabric, no origami, just a full-performance hull that fits in your trunk. Brilliant for Ottawa River day trips where you want hardshell performance without the roof rack.
  • Oru Bay ST: A 12'3" origami kayak that folds down to the size of a large suitcase, yet still handles everything from smooth lake water to open water conditions. At 26 lbs, it is easy to carry solo, and the closed cockpit holds enough gear for an overnight trip. It is our most versatile Oru model, best suited to intermediate and advanced paddlers who want speed without giving up portability.
  • Oru Coast XT: The most capable origami kayak in the Oru lineup, built for serious open water adventure. This 16'2" closed cockpit sea kayak can be paired with a spray skirt for waves or rain, and still folds down to a manageable 32 lbs. For paddlers who want a true touring hull that packs into a bag, this is as good as it gets.

🎣 The Ottawa River is exceptional for fishing. Muskie, pike, walleye, and bass are all present throughout the river, and sturgeon have been spotted in certain stretches. If fishing from your kayak is your thing, check out our kayak fishing guide for boat recommendations.

Ottawa River safety reminders

Wear your PFD at all times. Carry a Transport Canada-approved safety kit including a whistle, throw rope, bailer, and waterproof light. Tell someone your route and expected return time. Watch for dead heads, the submerged remnants of the 19th-century logging era, which are still present in many sections of the river. Watch the wind: the Ottawa River is wide enough that even moderate winds can create challenging conditions very quickly. And if you are not sure whether a section is within your ability, don't launch.

Ready to get on the water?

Come visit us in Arnprior. We carry kayaks, paddleboards, and all the gear you need, and our demo centre at McLean Beach is open Thursday through Sunday so you can try before you buy.

Visit ovap.ca

With love from the Valley,
Lana

Ottawa Valley Air Paddle is located at 67 Madawaska Street, Arnprior, Ontario. We are your Ottawa Valley home for kayaks, paddleboards, and winter gear. Visit us in-store or at ovap.ca. Demo centre open Thursday through Sunday at McLean Park on the Ottawa River in Arnprior, try before you buy.

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