Soak up the sun at this massive silent disco festival, helmed by summer-obsessed deejay Viceroy. This massive party is taking over the lawn at Fort Mason, so don’t leave your usual festival-friend-finders at home — floppy hats, sprawling picnic blankets and meme-oriented totems are encouraged. The booze will be flowing from cash bars hosted by three revered local joints: The Dorian, Palm House and Bergerac. BYO sunscreen.