To be honest: Lonely Beach itself has not much activities to offer. But Koh Chang has! And while staying on Lonely Beach you can reach most of the activities pretty easily with a scooter or hop on cab. Following you find a variety of nice things to do with detailed explanation and review. You can book or reach all the activities from Lonely Beach.
At the end I link to a complete activity list with over 30 different activities!
There are 6 waterfalls to explore on Koh Chang. With a scooter or hop on cab you can reach all of them pretty easily from Lonely Beach.
Koh Chang is huge and by renting a scooter you can explore the island and some nice things. I made two scooter trip routes for you.
The boat trip is amazing. Fantastic snorkeling spots and white sand beaches with crystal clear water on tiny islands. You won’t forget this one.
The island of Koh Chang is beautiful and has some nice hills and nature in the middle of the island.
You are into diving? Then Koh Chang has some beautiful places and wrecks for you to explore.
You want to learn how to make a nice pad thai and good curries? Have a great cooking class.
Climbing and ZIP lining is your thing? Then you should visit the Treetop surrounded by beautiful nature.
Well it’s camps not sanctuaries unfortunately. I will not recommend you to go there I just list it for completeness.
There are of course more things as the crocodile and snake show, quad tours, shooting range, temples or fishing which I haven’t listed yet.
Also don’t forget about the not fix events like parties or muay thai boxing.
I made a complete list on the site: Things to do