Cross Media International photograph ~ Mark Your Calendar ~ Upcoming Events at Treasure Island Museum click on the titles below for more information or to make a reservation Curator’s Tour of Our Galleries and Building One Saturday, June 27 Port Chicago Weekend 2026 July 17, 18 and 19 Ralph Stackpole: Stone and Fresco Master of Montgomery Street Saturday, July 25 Collection Manager’s Tour of our Archives Saturday, August 6 Doors Open California ~ Open House and Tours Sunday,

Please note: a huge event on Treasure Island (complicating transit and parking, as well as access to Building One and, in turn, our galleries) is scheduled this Saturday, June 13.

... there are some dates you might want to avoid when planning to visit Treasure Island and the museum. The city is hosting large music events in front of Building One that will complicate transit, parking, access to the building - and, in turn, access to the museum - on these upcoming dates: Saturday, June 6 Sunday, June 7 Saturday, June 13 Thank you in advance for your understanding.

Treasure Island Building One will be open tomorrow and Sunday, but the building (and, in turn, our galleries and the TIM office) will be closed on Monday in observance of Memorial Day.

A quarter million people drive across Yerba Buena and past Treasure Island every day, but few are familiar with the islands’ unique history. People have questions and turn to the museum for answers. In addition to our detailed timeline feature (available online here), we have drafted these answers to frequently asked questions to share with new residents, island visitors, and those who follow us online.

Treasure Island Museum's Swing Dance in Historic Building One featuring Classic Cocktails and Music by the Nick Rossi Swing Six Saturday, September 26 Vintage Attire Admired but not Required details to follow