An island with eyepopping views, 5 wineries (the grapes are imported) and only 2 places to eat can't be all bad? :)
Also, it's only $2 and 10 minutes away, via Muni Bus 108.
The naturally formed Yerba Buena Island is steep, largely forested, and provides a variety of hiking trails over/around/under the Bay Bridge. Treasure Island was filled in for the Golden Gate International Exposition in the late 1930's, used by the military during WW2... and is clearly a bit worse for the wear. The SF Planning Commission recently approved a massive redevelopment project - but these things take a while :)
In the meantime - the beautifully massive "Bliss Dance" sculpture (by Marco Cochrane for Burning Man 2011) dances by herself (unless you join...) along the waterfront until October 2011!
The wineries (with tasting) are easy to find by the many signs...
Fat Grape Winery - 1080 Ave M (in the former Navy brig!) - (415) 377 - 1876
Winery SF - 200 California Ave, Bldg 180 - (415) 735 - 8423
Treasure Island Wines - 995 9th St, Bldg 201 - (415) 394 - 9463
Bodega Wine Estates - 751 13th St - (415) 525 - 4154
Eristavi Family Winery - 995 9th St, Bldg 201 - neristavi@gmail.com - tasting by appointment only
Address: Treasure Island, CA
Website: http://en.wikipedia.org/wiki/Treasure_Island_(California)
