Mt. Tam ridge, Muir Woods redwoods, and the legendary Dipsea steps in 18.8 miles
Other trail races within 110 miles
A demanding 30K through some of the Bay Area's most celebrated terrain, the Muir Woods Mountain Challenge 30K tackles Mt. Tamalpais from the Stinson Beach shore. The course opens with a brutal 2,000-foot climb up Willow Camp hill in the first two miles, rewarded by sweeping Pacific Ocean views along the single-track Coastal Trail ridgeline. After descending the damp and technical Matt Davis Trail, runners climb again via the Dipsea Trail, wind through Muir Woods National Monument's towering old-growth redwoods, and summit Cardiac Hill before the iconic — and famously harrowing — Dipsea steps carry them back down to the beach finish.
Some ultra experience recommended
Stinson Beach, CA, United StatesJuly 18, 2026
Muir Woods Mountain Challenge 30K is a loop trail race in Stinson Beach, CA, United States, held on July 18, 2026. The course covers 18.8 miles, climbs 4,950 ft, and has a 6h30m cutoff.
| Location | Mile | Elevation | Cutoff |
|---|---|---|---|
Start Start | 0.0 | 0 ft | — |
Stinson AS Aid Station | 6.2 | 289 ft | 18h45m2:15 AM |
Cardiac Hill Aid Station | 9.9 | 1,411 ft | 20h3:30 AM |
Cardiac Hill Aid Station | 15.4 | 1,411 ft | 21h55m5:25 AM |
Finish Finish | 18.6 | 36 ft | 23h6:30 AM |
Aid station details for this race are still being filled in. Cutoffs and access rules come from the race’s own published information and can change — check the official race details before planning around them.
Sign in for race-day weather at every station, points of interest, segment-by-segment analysis, pacing, and to save this race to your calendar.
Coastal fog typical at the Stinson Beach start; conditions shift to warm and exposed on open ridgelines by midday in July
No required gear specified
No recommended gear specified
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