This small, arid boomerang of an island is a divers' paradise. Skeptical? Read the license plate on your rental car, pal. Bonaire really does have some of the best diving in the region, most of it within the Marine Park encircling its shore.
The average daily high stays around 28°C (82°F) all year, and humidity is tolerable, so the best time to go is the low season of May to mid-December when rates come down. Bonaire is out of the hurricane belt so you don't have to figure the big blow into your schedule.
A bit out from the center of Kralendijk, the Bonaire Museum is in an 1885 house filled with folklore displays including artifacts of the Caiquetio Indians, Bonaire's inhabitants when the Spanish arrived. Look for the detailed paintings of local mythology by Winifred Dania and Bonaire's impressive seashell collection.