If you're into #diving:

"Hin Daeng and Hin Muang near Ko Lanta are perhaps the best dive sites in Thailand (frequently ranking in the world’s top ten) with more than 200 hard corals and 108 reef fish catalogued in a study underway, but thousands more organisms abound. [...] The sites also have one of the world's highest incidences of whale shark sightings."

https://en.wikivoyage.org/wiki/Ko_Lanta#Diving

#hackerbeach