Rock the Loch (5K/10K/Half trail) flyer Running

Rock the Loch (5K/10K/Half trail)

Sun · 2026-06-28 — Lake Chabot Regional Park, Castro Valley — $59–107

Lakeside trails with a distance for every level — bring beginners and hardcores alike

Multi-distance trail race (5K/10K/half marathon) at Lake Chabot Regional Park in Castro Valley, looping the lush reservoir trails. Pick your distance, $59–107.

running trail 5k 10k half-marathon

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