Courtesy photo<p>Bike to Theater Night: Roll to American Conservatory Theater to watch "A Christmas Carol" on Bike to Theater Night. Get a special discount for biking to the theater -- with tickets as low as $10 -- with a special code found at <a href="http://sfbike.org/events">sfbike.org/events</a>. There will be complimentary beer and snacks at the preshow happy hour from 6-7 p.m. at ACT's Sky Bar. The San Francisco Bicycle Coalition is also providing free valet bicycle parking. [6-9 p.m. Friday

Dec. 5: El Mercado, Stevie Wonder and more

A GREAT BIKE EVENT

Bike to Theater Night: Roll to American Conservatory Theater to watch “A Christmas Carol” on Bike to Theater Night. Get a special discount for biking to the theater — with tickets as low as $10 — with a special code found at sfbike.org/events. There will be complimentary beer and snacks at the preshow happy hour from 6-7 p.m. at ACT's Sky Bar. The San Francisco Bicycle Coalition is also providing free valet bicycle parking. [6-9 p.m. Friday, American Conservatory Theater, 405 Geary St., S.F.; promo code at www.sfbike.org/events and tickets at act-sf.org]

FRIDAY

Christmas show: Community Music Center's bilingual Christmas musical, “La Posarela,” includes themes of immigration and gentrification. A fiesta follows each show. [7 p.m., Brava Theater, 2781 24th St., S.F.]

'Key of Life': Rock and Roll Hall of Famer Stevie Wonder is playing his classic 1976 album, “Songs in the Key of Life,” in its entirety. [8 p.m., Oracle Arena, 7000 Coliseum Way, Oakland]

Stand-up comedy: Comedian Dave Attell, who has appeared on “Insomniac with Dave Attell” and other Comedy Central shows, is performing. [8 p.m., Cobbs Comedy Club, 915 Columbus Ave., S.F.]

Gospel show: “Soulful Christmas: A Gospel Holiday Concert” features singer Yvonne Cobbs, the Lorraine Hansberry Theatre choir and more singing old and new holiday favorites. It runs through Dec. 24. [8:30 p.m., Building D, Fort Mason, Marina Boulevard and Buchanan Street, S.F.]

SATURDAY

Mission culture: The Mission Arts Performance Project, which is dedicated to the indigenous people of Latin America, presents an evening of readings, music and more. [Various times, www.mappsf.com]

Girls rule: The Girls on the Run 5-kilometer run is benefiting after-school programs. [9:30 a.m., Music Concourse, Golden Gate Park, S.F.]

Holiday market: El Mercado presents scores of Bay Area vendors selling crafts, gourmet treats, art and more. Starting at 2 p.m., Ferocious Few and The Jeanettes are providing live music. [11 a.m.-8 p.m., Ghirardelli Square, 900 North Point St., S.F.; elmercadosf.com]

'Chosen Exile': Stanford history professor Allyson Hobbs discusses her new book, “A Chosen Exile: A History of Racial Passing in American Life.” [10 a.m., Museum of the African Diaspora, 685 Mission St., S.F.]

Vocaloid concert film: “Encore,” a concert film featuring computer-generated vocaloid singer IA, screens. [3 p.m., Kinokuniya, 1581 Webster St., S.F.]

Book launch: San Mateo-based Dalang Publishing is launching three books at the Indonesian Consulate. [3 p.m., 1111 Columbus St., S.F.; dalangpublishing.com]

Oil disaster: “The Great Invisible,” a documentary about the 2010 Deepwater Horizon oil spill and its devastating impact on the Gulf Coast fishing industry, is followed by a talk by director Margaret Brown. [4:30 p.m., Roxie Theater, 3117 16th St., S.F.]

A GREAT HIKE

Mile to wild: Getting back into pure wilderness doesn't take long in Point Reyes. Abbotts Lagoon is in its prime right now. Its 200-plus acres feature silky-soft sand, wind-sculpted dunes and two lagoons. The latter are a mix of fresh and saltwater, making them a boon for a variety of shorebirds. The hike to reach Abbotts Lagoon is a short, flat mile through grassland and scrub. It's the scenery that goes long: Landscape. Sandscape. Seascape. [Visit WeekendSherpa.com for details and other local adventures.]

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