FRIDAY
On the town
Improv theater: BATS Improv presents its “Holiday Musical,” an improvised play set during the holidays and inspired by audience suggestions. [8 p.m., Bayfront Theater, Fort Mason Center, Marina Boulevard and Buchanan St., S.F.]
SATURDAY
A great hike
No angry birds: Bodega Bay may be best known as the backdrop for Alfred Hitchcock's “The Birds,” but there's a softer side to its dramatic coastline and its resident birds. The Birdwalk Coastal Access Trail loops around two ponds and provides a bird's-eye view of the bay. The marsh is home to thousands of feathered friends, among them snowy egrets and willets. Try connecting to the Cheney Creek Bridge Trail, which literally bridges to Doran Regional Park and its 2 miles of white sand beach. [Visit WeekendSherpa.com to find out more about getting outdoors in Northern California]
Ferry Plaza Farmers Market top picks
Spiced nuts
Brussels sprouts
Cherimoyas
Meyer lemons
Eggnog gelato
Owari satsuma mandarins
Sweet potatoes
Spearmint sugar
Treviso radicchio
Music
Humorous harmonies: The Kinsey Sicks, the comical drag beauty shop quartet, premiere their new show, “America's Next Top Bachelor Housewife Celebrity Hoarder Makeover Star Gone Wild!” [8 p.m., Castro Theatre, 429 Castro St., S.F.]
Americana band: The Devil Makes Three, whose sound contains bluegrass, ragtime, blues, jazz and folk, performs a show to promote its new LP, “I'm a Stranger Here.” [9 p.m., Fillmore, 1805 Geary Blvd., S.F.]
Brazilian music: SambaDa, a samba, funk and surf-rock band with an Afro-Brazilian tone, plays a dance-party show. “Gente” is the group's latest album. [9 p.m., Chapel, 777 Valencia St., S.F.]
Celebrations
Kwanzaa events: San Francisco Kwanzaa celebrations continue through Jan. 1. Saturday's events include a jazz performance at the Potrero Hill Recreation Center. [1 p.m., 801 Arkansas St., S.F., full schedule: www.kwanzaasanfrancisco.com]
SUNDAY
A great bike ride
Pedal off Christmas cookies: Celebrate the holiday weekend with a nice family ride! Grab your bike and your loved ones and take to the streets. Start at the Ferry Building and pedal on the promenade to Fisherman's Wharf. Keep riding past the Aquatic Park. Go up the hill for a great view of Fort Mason. Turn around any time — or keep pedaling along the Marina. [www.sfbike.org]
Dance
Last dance: The San Francisco Ballet performs its last “Nutcracker” show of the season. Music is by Tchaikovsky, choreography is by Helgi Tomasson and the setting is San Francisco. [2 p.m., War Memorial Opera House, 301 Van Ness Ave., S.F.]
Theater
Elf portrait: It's the last day to catch “The Santaland Diaries” this season. Christmas is seen through the eyes of a department store elf in this comedy based on David Sedaris' essay. [2 and 5 p.m., Eureka Theatre, 215 Jackson St., S.F.]
Music
Hip-hop pair: The hip-hop duo Blackalicious performs a show celebrating the 20th anniversary digital reissue of the pair's debut EP, “Melodica.” [9 p.m., Slim's, 333 11th St., S.F.]
Metal band: The influential post-metal and experimental-metal band Neurosis appears. “Honor Found in Decay” is the group's latest album. [8 p.m., Regency Ballroom, 1300 Van Ness Ave., S.F,]