Spot Guide › United States › California › Mushroom Rock, Half Moon Bay prone-foil candidate
California, United States · 37.4930, -122.4720

Season
Winter swell data set
Water
Refracted Pacific swell; strongest energy generally over water deeper than about 25–30 ft in the report
Experience
Advanced open-ocean prone/SUP and no-wind downwind candidate
Hazards
Long paddle, open-ocean swell, reef shallows, shipping-channel marker, abrupt energy loss in shallow water and solo-shuttle exposure.
“A local reply calls Mushroom Rock the Bay Area's best workable prone-foil option under limited wind and small conditions, while warning of a roughly quarter-mile paddle. Community/area pin only; exact break, access and etiquette must be verified. Requested-field batch 04 verified 2026-08-01: guide/resource labels and hazards use cited row evidence; exact, nearby and route-endpoint relationships are explicit; unresolved fields remain Unknown. Progression Project forum first-hand log documents more than 60 Mushroom Rock-to-Miramar no-wind downwind laps using refracted Pillar Point swell and a self-supported bike/scooter shuttle.”
— via Reddit r/foiling local community advice; Requested-field research Progression Project forum — public topic and post research, last verified 2026-08-02
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