Best Beaches on Earth
Ellen McKnight / Alamy
Las Baulas National Park, Playa Grande, Costa Rica
Best for Wildlife Viewing: Playa Grande, ranked No. 5 for wildlife viewing, is best known for its surf-worthy waves, though parts of its shore are also protected nesting grounds for ridley and leatherback turtles. During nesting season (October to March), travelers can visit only with a park guide.