RMH BC & Yukon Boundary Bay 5K, 10K, Half, Marathon, 4-person Relay

When late fall blankets the Lower Mainland, Boundary Bay offers one final shot at Boston qualification along British Columbia’s southern edge.
November 2, 2025
Delta, BC
Number of finishers
951
Distances:
5K, 10K, Half, Marathon, 4-person Relay
Elevation:
0 m

No Hills, FLAT, & BEAUTIFUL!

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The Boundary Bay Marathon offers one final shot at Boston qualification along British Columbia’s southern edge.

This pancake-flat course follows a gravel oceanside trail where migratory birds soar overhead and the San Juan Islands emerge from the mist.

The out-and-back design keeps things simple: just you, the rhythm of your footsteps, and endless views across the Salish Sea. No hills, no turns, no distractions – unless you count the seals bobbing in the surf or eagles fishing in the shallows.

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