Of the 7 countries in Central America, Costa Rica, Belize, and Panama offer remarkable dive resort experiences. Belize boasts the iconic Blue Hole and a wealth of remote islands to explore, with chances to see whale sharks, turtles, rays, and dolphins. In Panama, dive resorts provide access to Coiba Island, a pelagic wonderland, and the hammerhead-rich waters near Malpelo. The best time to dive in these areas is generally from March to December."