The 5K Foam Fest - London, ON 2026

The 5K Foam Fest brings a playful obstacle-course day to Boler Mountain in London. It’s set up for runners, walkers, and families who want a shorter, high-energy outing with plenty of foam and mud along the way.

This London stop includes a 5K option, plus Kids Race and Walk entries. The event leans into a festival atmosphere, with music and a course that can be taken at your own pace.

It’s a good fit for first-timers as well as regular OCR fans who want a lighthearted summer challenge in the city.

For runners comparing local mixed options, it fits alongside other mixed races in London.

The course follows an obstacle-course fun run at Boler Mountain. Obstacles are optional, so participants can move through the route at their own pace. Expect foam, mud pits, and a festival-style finish area.

• Boler Mountain venue in London, ON
• 5K, Kids Race, and Walk options
• Obstacle-course-style fun run
• All obstacles are optional
• Foam, mud, and music on course
• Designed for all ages and ability levels