Fodor's Expert Review Zamami-jima

This little island paradise offers wonderful beaches, snorkeling, diving, and sea kayaking. From late January through March is prime whale-watching season, and during those months you can join two-hour boat tours from Naha. From land, the north shore gives you the best chance of seeing whale tails and fin-slapping humpback antics—but bring your best binoculars.

For great snorkeling, try Furuzamami Beach, a short walk south of the harbor and village. In summer, there are snorkel rentals and showers. There's also a restaurant, and shuttle buses run to and from the pier.