6Cayo Santa Maria, Cuba
Cayo Santa Maria, part of Cuba’s Jardines del Rey archipelago, is a pristine tropical paradise known for its stunning beaches and vibrant marine life. The island’s white sandy beaches, such as Playa Pilar, are excellent for shell hunting. The shallow waters around Cayo Santa Maria are home to an array of seashells, including conchs, cowries, and scallops. The island’s relatively untouched environment ensures that shell enthusiasts can find a wide range of beautiful and unique shells.