Frontrunners and Walkers, Sonoma County -- meets Saturday mornings where the parking lot meets Lake Ralphine at Howarth Park in Santa Rosa, Summerfield Road near Mission, 8:30 a.m. for an hour walk or run around Spring Lake.
Backriders Bike Ride Gay bicycle rides through Sonoma County on the last Sunday of every month.
Marin Hike and Bike -- Geocities homepage and Yahoo group.
Fife's Guest Ranch Camp on the Russian River at 16467 Main St, Guerneville. 15 acres of gay fun.
Boyz In The Woodz (BWclub.net) -- SF Bay Area Gay & Bi Men's Hiking & Social Club
The Highlands Resort in Guerneville -- clothing optional pool and hot tubs.
MeadowlarkInn.com near Calistoga Napa Valley's ONLY clothing optional mineral water pool.
LIAHO.org -- Let It All Hang Out
a gay nudist club for men in Marin, Napa, Sonoma, San Francisco and the East Bay.
SAGA North is San Francisco Bay Area's Gay and Lesbian ski, snowboard and recreation club.
GayCampers.com -- camping at Fife's on the Russian River.
GayOutdoors.org is a great website for all gay outdoor activities.
GaySports.com -- weekend on the Russian River.
Northern California Rainbow Divers -- RainbowDivers.org