From spectacular diving to untouched beaches, jungle-clad waterfalls, and swoon-worthy sunsets, Ko Chang may be Thailand’s third-largest island, but it’s also long been one of its best-kept secrets. Also known as Elephant Island, thanks to its elephant-shaped headland, Ko Chang is a short hop from the Cambodian border. It walks the fine line between luxury and laid-back, with plenty of hidden highlights dotted between resorts and party areas. Some of the best things to do on Ko Chang include beach-hopping, exploring the Mu Ko Chang National Park, and boat-tripping to neighboring islands.