Bubble Battle NYC 2015

French dating app Happn—basically a hyperlocal Tinder (it has a radius of about two blocks)—hosts this squeaky-clean affair, which is essentially just a massive crowd of people running around Union Square with bubble wands and bubble guns and, well, pretty much anything that can successfully make an orb out of soap. The theme for the event is Party Boat, so shark costumes and banana suits are encouraged.