Tucked along the Barron River on the remote eastern edge of Algonquin Park, High Falls is far more than a natural waterslide. As the river flows from Stratton Lake toward High Falls Lake, it winds through a series of crystal-clear swimming holes connected by smooth rock channels and gentle cascades.
At the heart of the landscape is the famous waterslide itself: a broad sheet of polished granite where rushing water carries riders down a naturally sloping chute and into a deep pool below. Surrounded by rugged wilderness, sun-warmed rock, and clear water, it’s one of Algonquin’s most memorable natural attractions.
Beyond the slide, expansive granite slabs provide the perfect place to relax, enjoy a picnic, or soak up the scenery. The surrounding pools range from shallow areas ideal for wading to deeper sections perfect for a refreshing swim. With its secluded setting and untouched beauty, the area feels more like a hidden wilderness retreat than a typical day-use destination.
A Wild Ride
The experience begins the moment you sit at the top of the slide, cold water rushing around your legs as you look down at the clear pool framed by forest and stone. Then the current takes over. Within seconds, you’re gliding down the smooth granite chute before splashing into the water below. It’s an exhilarating ride that leaves most visitors smiling and heading straight back for another turn.

Conditions vary throughout the season. In early summer, snowmelt and rainfall can create a fast, powerful current, while later in the season the flow often becomes gentler but still retains its appeal. No matter the water level, visitors quickly settle into the same routine: slide, swim, climb back up the sun-warmed rock, and do it all over again.
The most popular route to High Falls follows a roughly 4.5-kilometre trail from a small parking area about 13 kilometres beyond the Sand Lake Gate on Barron Canyon Road. The trail passes through a beautiful mix of pine and hardwood forest and is mostly flat and easy to follow, with only a short section of light scrambling near the end. Most hikers can reach the falls in 60 to 90 minutes, making it a rewarding adventure for anyone with a moderate level of fitness.
The Need To Know Details
- What to Bring: Pack for a full day with no amenities: swimsuit, quick-dry towel, sturdy footwear or water shoes, plenty of water and snacks, sunscreen, bug spray, and a life jacket for the slide—especially for children and weaker swimmers
- How to Get There: Located on Algonquin Park’s quieter eastern side via the Sand Lake Gate, High Falls requires a longer drive but rewards visitors with a remote wilderness experience
- Alternative Access: For a more adventurous trip, reach High Falls via a canoe route through Grand and Stratton Lakes from the Achray area, turning the visit into a backcountry day trip or overnight camping adventure
- Note: A valid Algonquin Park day-use permit is required. Check Algonquin Park’s current permit system before visiting
- Safety Considerations: High Falls is a natural waterslide with no lifeguards or safety features, so inspect conditions before sliding, stay well away from the powerful falls located downstream of the slide area, and watch for poison ivy along trails and shorelines