2. You don’t even need a tent
They’ll provide one for you. You will, however, need to bring a sleeping bag, a cooler/picnic basket full of supplies, a pillow, a flashlight, a dossier (you'll be emailed), and a white, ruinable shirt. They also highly recommend a snorkel, underwater flashlight, and several pairs of underwear, presumably because of the whole aforementioned poop thing.