Best Drives Along the Ottawa Valley

The Ottawa Valley is one of those parts of Ontario that most Toronto drivers have only experienced through the windshield of a car barrelling down Highway 17 at 110 km/h on the way to Ottawa. And that's a shame, because the Valley is one of the most underrated driving regions in the province. The landscape is rougher and more dramatic than the gentle rolling farmland most people picture when they think of eastern Ontario. The Ottawa River carves through it, the Madawaska and Bonnechere rivers feed into it, and the whole area sits on the edge of the Canadian Shield where the rock starts pushing through the topsoil.

I first explored the Valley properly about eight years ago when a friend's cottage near Calabogie gave me a reason to get off the highway and onto the back roads. I've been going back every chance I get. Here are the drives that make it worth the trip.

Highway 17: The Main Artery

Highway 17 is the Trans-Canada route through the Valley, running from Arnprior northwest through Renfrew, Cobden, Pembroke, Petawawa, and beyond to Deep River and Mattawa. As a through-route it's functional and reasonably scenic, but the real value of Highway 17 is as a spine that connects the side roads where the good driving lives.

That said, the section between Pembroke and Deep River deserves a mention on its own. The highway follows the Ottawa River closely through this stretch, and the river widens out into something almost lake-like. The views from the road are excellent, especially in fall when the Laurentian hills on the Quebec side light up with colour. Deep River itself is a quiet, attractive town that exists mostly because of the Chalk River nuclear laboratories. It has a surprising amount of character for its size, with a good waterfront park and a couple of decent restaurants.

The drive from Arnprior to Pembroke takes about 90 minutes without stops. With stops, budget half a day. Each of the towns along the way has something worth pausing for, and rushing through the Valley defeats the purpose of driving it.

The Opeongo Line: Into Algonquin's Back Door

This is the drive I recommend most to people who haven't explored the Valley. The Opeongo Line is the informal name for the route that runs from the Madawaska River area south into the highlands and toward Algonquin Park's less-visited western access points. The road follows Highway 512 and various county roads through Barry's Bay and into the Madawaska Highlands.

The scenery along this route is different from the Highway 60 corridor that most people use to access Algonquin. It's more rugged, less developed, and gives you the sense of driving into genuine wilderness rather than a well-managed provincial park. The road climbs and descends through Shield country, passing small lakes and dense forest with occasional clearings that reveal sweeping views.

Barry's Bay is the main town along this route and a good place to stop for fuel and food. It has a strong Polish-Canadian heritage that shows up in the local bakeries and restaurants. If you're there in August, the area hosts one of the largest Polish festivals in Canada.

The Opeongo Line connects to our Petawawa area driving guide for those approaching from the north, and to Highway 60 for the main Algonquin Park corridor.

Bonnechere Caves Road and the Eganville Detour

South of Highway 17, about 15 minutes from Renfrew, the town of Eganville sits on the Bonnechere River and serves as the gateway to the Bonnechere Caves. The caves themselves are a legitimate geological attraction, a series of caverns carved through ancient limestone by underground water, with fossils visible in the rock walls. They're about a 20-minute drive south of Eganville on Fourth Chute Road.

The drive to the caves takes you through farmland that transitions into rocky, forested terrain as you approach the river gorge. It's a pleasant drive, not dramatic but peaceful, and the road is paved and well-maintained. The caves are open seasonally, typically June through October, so check before making the trip.

From Eganville, you can loop back to Highway 17 through Douglas on County Road 26, or head south toward Calabogie and the Madawaska Valley on Highway 41. The Calabogie route takes you past Calabogie Lake and through excellent Shield driving country. If you're a motorsport enthusiast, Calabogie Motorsports Park hosts track days and events through the warm months.

The Small Towns: Arnprior to Deep River

One of the best things about Valley driving is the towns themselves. Unlike a lot of Ontario's cottage-country communities, which can feel like they exist solely for tourists, the Ottawa Valley towns have real, year-round economies and distinct personalities.

Arnprior is the eastern gateway to the Valley, about 45 minutes west of Ottawa. It sits at the confluence of the Madawaska and Ottawa rivers, and the downtown has been revitalized nicely in recent years. Good coffee shops, a couple of antique stores worth browsing, and a beautiful riverside park.

Renfrew is the unofficial capital of the Valley, a working town with a strong agricultural base. The O'Brien Theatre on the main street is a beautifully restored venue that hosts live performances. The McDougall Mill Museum gives you a sense of the Valley's logging history.

Pembroke has reinvented itself around its waterfront and murals program. The downtown buildings feature large-scale murals depicting Valley history, and the waterfront trail along the Ottawa River is worth a walk. For drivers, Pembroke is the last major service centre before the road gets more remote heading northwest.

Petawawa is primarily known for the Canadian Forces Base, which has shaped the town's character. The area around Petawawa and neighbouring Chalk River offers unique driving routes toward Algonquin Park's north side. See our dedicated Petawawa area guide for more detail.

Deep River and Chalk River mark the northern end of the populated Valley. Beyond here, Highway 17 becomes increasingly remote as it heads toward Mattawa and North Bay. Deep River's town beach on the Ottawa River is unexpectedly beautiful and worth a stop.

Best Seasons for Valley Driving

Fall (late September to mid-October) is the clear winner. The Valley's mix of hardwoods, particularly the maple and birch forests along the river hills, creates some of the best fall colour in the province. The Opeongo Line during peak colour is genuinely world-class. Combine this with the quiet roads of post-Labour Day shoulder season and fall is unbeatable.

Summer is excellent for the water access. Many of the routes pass rivers and lakes where you can swim, paddle, or just sit and watch the current. The towns are all active with farmers' markets and events.

Spring brings high water levels that make the rivers dramatic. The waterfalls and rapids along the Bonnechere and Madawaska are at their most impressive during spring runoff. Road conditions can be rough in April from frost heaves, but by May everything is solid.

Winter driving in the Valley is serious business. Highway 17 is well-maintained, but the side roads can be challenging. The Valley gets significant snow and cold, and the wind coming off the Ottawa River can cause drifting across the highway. Winter tires are non-negotiable, and checking conditions on Ontario 511 before heading out is essential.

Practical Planning

Fuel up in Arnprior, Renfrew, or Pembroke. These are the reliable, competitively priced fuel stops. Once you leave the main highway corridor, stations become scarce and hours become unpredictable.

Cell service is generally good along Highway 17 and in the towns, but drops quickly on the side roads and the Opeongo Line routes. Download offline maps before heading into the back roads.

The Valley is about 90 minutes from Ottawa and about four hours from Toronto. It pairs well with an Ottawa visit for a long weekend trip: city time in the capital, driving time in the Valley. For connecting routes, our Georgian Bay drives can be reached by continuing west through Algonquin Park on Highway 60, creating a multi-day loop through the best of central Ontario.

For more Ottawa Valley and eastern Ontario route ideas, our small-town Ontario road trips guide covers several communities in this region worth the detour.