Alameda County, California
The Sequoians, A Clothes Free Club
The Sequoians sits on 17 acres of wooded hillside in Castro Valley, about 30 miles southeast of San Francisco in the East Bay.
About this place
The Sequoians sits on 17 acres of wooded hillside in Castro Valley, about 30 miles southeast of San Francisco in the East Bay. Founded in 1939, it's one of California's oldest continuously operating nudist clubs, giving it a long-established, tradition-minded feel. The property mixes old-growth trees with open sunny clearings, and trails wind through the terrain. This is a membership club, not a drop-in resort, so you'll need to reach out ahead of time if you're interested in visiting. The atmosphere is cooperative and community-focused—think potlucks, volunteer work days, and multi-generational gatherings rather than polished amenities or resort services. Facilities include a heated pool, hot tub, sauna, and volleyball court. There's a clubhouse with a kitchen where members organize meals and social events. Overnight stays are possible via RV hookups or tent camping, and day visits can sometimes be arranged for prospective members or guests of current members. The vibe is decidedly low-key and family-oriented. Weekends in warm weather see the most activity. The Sequoians represents the older model of American naturism—member-owned, volunteer-run, and rooted in a specific local community rather than catering to a transient tourist crowd.
Visitor notes
Contributed by ClothingOptional.org Editorial Team
Who visits
The Sequoians draws a multi-generational membership base, from young families with children to retirees who've been coming for decades. The cooperative structure means you're more likely to meet long-time regulars than first-timers. The vibe is low-key, social, and community-minded. Expect potlucks, shared work projects, and informal gatherings rather than programmed activities or a party scene.
How to find it
The club is located in the Castro Valley hills off Cull Canyon Road, about 30 miles southeast of San Francisco and roughly 15 miles inland from Oakland. The property is tucked into wooded terrain, so it's not visible from the road. You'll need to contact the club in advance for gate access and specific directions. Parking is on-site once you're through the entrance.
Things to watch out for
This is a private membership club, not a public facility. Day visits and tours are sometimes available to prospective members, but you must arrange them ahead of time—don't just show up. The property can get hot and dry in summer, typical for inland East Bay microclimates, so bring water and sun protection if you're spending the day outdoors.
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Etiquette & ground rules
Carry a towel and sit on it whenever you're on shared furniture—this is non-negotiable at any nudist club. Photography requires explicit permission from everyone in frame, and most people here prefer you don't. Kids are present, so keep behavior appropriate and non-sexual. Alcohol is allowed in moderation, but don't be the drunk person. Since this is a membership club, day visitors usually need advance arrangements. Respect quiet hours if you're camping overnight. If someone's reading alone or clearly wants space, don't force conversation. Pitch in if there's a work party or cleanup happening—these clubs run on volunteer effort.
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