Start off the year going back to nature with the Wild Equity Institute this Saturday at the Golden Gate National Parks Endangered Species Big Year Bike Ride & Kick-off Celebration. The day begins with a morning bike ride that will explore some of the endangered flora and fauna in the city, including Presidio Manzanita and and the Southern Sea Otter. Co-sponsored by the SF Bicycle Coalition, the ride departs at 9:30am from Bazaar Cafe (21st Ave. & California) and ends at the Wild Equity Institute's kick-off celebration at Sports Basement Presidio. If you're not into riding but want to support Wild Equity, head straight to Sports Basement at 1 for free drinks and snacks from Arizmendi and 10% off of Sports Basement merchandise (10% of the purchases will go to Wild Equity). After snacks and some shopping, the celebration will move to Crissy Field to search for the Western Snowy Plover.