Grenada, nicknamed the "Spice Isle," sits at the southern end of the Caribbean chain and offers a quieter, more authentic alternative to some of the region's more heavily touristed islands. Travelers come for the beaches, but they stay for the spice plantations, rainforest hikes, wreck diving, and the world's first underwater sculpture park. English is the official language, US dollars are widely accepted, and it's a straightforward, direct-flight trip from several major US cities.