Bonnaroo is a music and arts festival that takes place every June in Manchester, Tenn. As far as festivals go, this hippie gathering probably comes the closest to the most iconic music festival ever: Woodstock. And with tons of activities happening in addition to the music — like “The Big Ass Water Slide,” “Adult Swim Ragbag of Jollification,” and “Silent Disco” — you’re sure to leave Bonnaroo wet, muddy, and a wee bit altered (if you know what we mean).

For this event, you’ll need the following items:

• bikini — and know that the top will eventually take the place of any shirt or tank

• wrap skirt

• John Lennon round frame sunglasses

• hippie headband or bandana