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In Dutch, Kralendijk means “coral dike.” As soon as you peek through your snorkeling mask off the shores of this main port of Bonaire, you'll know the name fits. Paddle a kayak, peer down from a glass-bottom boat or dive right in the crystalline waters to join the radiant parade below. Surrounding the island is miles of protected reefs, while the island’s interior offers equal delights, including the desert landscapes of divi-divi trees and cacti at Washington Slagbaai National Park.