You’re floating in the calm waters off the Waianae coast, where your 42-foot sailing catamaran has just dropped you off. Below, in the reef, are turtles, and suddenly in the distance, you see spinner dolphins. This happens almost every day on the 4-hour tours (departing at 8am; check-in 7:30am) operated by the Cullins family, who have swum in these waters for decades. In winter, you may spot humpback whales on the morning cruise, which includes lunch, snorkel gear, instruction, and a flotation device. The other thing that sets this company apart is its small group sizes, limited to 6 on the Best of the West tour, and 10 on the Deluxe Wildlife Charter.