What should I bring on a Na Pali Coast tour?

Bring reef-safe sunscreen, a hat, sunglasses, and a towel. Our larger boats have freshwater showers, but we don’t supply towels. A light layer helps too: the catamaran moves fast, and wind off the water is cooler than the air on shore, especially in the morning. A waterproof phone case is worth packing, too, since phones are the most commonly lost items overboard during the snorkel stop.