AdventureLuxuryNatureWellness 23 of the Most Beautiful Beaches in the World Advertisements 21. Radhanagar Beach, Andaman Archipelago, India travellifejourneys.blogspot.com Radhanagar Beach on Havelock Island in the Andaman and Nicobar Islands is focused on the development and promotion of ecotourism. Locally known just as Beach No. 7, you’ll find turtles, dolphins, fish and the occasional elephant en route. Advertisements