If you have longer hair, you may want to bring a comb. Also, something to put your contact lenses into while you're in the tank. Other than that, we provide everything you need (one towel, earplugs, body wash/shampoo…) Each room is fully private and you go into the tanks nude so there's no need to bring a bathing suit. Robes, flip flops and an extra towel are available only upon request.