Hanauma Bay Nature Preserve
Picture this as the world's biggest open-air aquarium: you come to see fish, and fish you'll see. Due to their exposure to thousands of visitors every week, these fish are more like family pets than the skittish marine life you might expect. An old volcanic crater has created a haven from the waves where the coral has thrived. Note that there's a fee for nonresidents to enter the preserve; make reservations and prepay online ahead of time (locals have a morning time period where they can walk in without a reservation). You must also watch a nine-minute video about the nature preserve in its educational center before being allowed down to the bay. Snorkel equipment and lockers are available for rent, and you can walk the short distance from the parking lot or take a tram. It's best to visit early in the morning (around 7), as it's difficult to park later in the day. Need transportation? Take TheBus each way from anywhere on the island. Amenities: food and drink; lifeguards; parking (fee); showers; toilets. Best for: snorkeling; swimming.
