The islands around Semporna hold a treasure trove of riches below their jewel-toned seas, with the biggest drawcard being Sipadan, one of the world’s best dive sites and made famous by Jacques Cousteau. Sipadan and the other islands are not only limited to divers—it’s possible to snorkel here, too. ... Read more about Diving and snorkelling .
Take the opportunity to explore a little of Sabah's rich mangrove ecosystems with a late afternoon river cruise to see some of the beautiful wildlife, including proboscis monkeys. ... Read more about Semporna proboscis monkey river cruise .
If staying on a deserted tropical island caring for the underwater world sounds like your cup of salty water, Tropical Research and Conservation Centre (TRACC) offers the opportunity to be a paying volunteer on their coral reef conservation project. ... Read more about Tropical Research and Conservation Centre .
Bukit Tengkorak (Skull Hill) near Semporna was the largest Neolithic ceramic manufacturing site in Southeast Asia. ... Read more about Bukit Tengkorak (Skull Hill) .
The Travelfish newsletter is sent out every Monday and is jammed full of free advice for travel in Southeast Asia. You can see past issues here.