4. Hidden Beach, Islas Marietas, Mexico
Hidden Beach, or Playa del Amor, is a secluded gem nestled on one of the Marieta Islands, an archipelago off the north-western coast of Mexico. To access this hidden paradise, visitors must embark on a boat ride to the island, followed by an adventurous swim or kayak through a water tunnel that leads straight into the vast Pacific Ocean. It’s a unique and unforgettable way to experience this serene retreat.