This dive site, Ao Yui, is located approximately 3 km from the pier near Samaesarn island, Thailand. Underwater navigation typically involves exploring hard coral formations found between 5m and 12m, with the deeper areas transitioning into a sandy expanse known for its abundant macro life. Given its location around Samaesarn island, divers can experience exhilarating drift dives when the tides are rising or falling, making an advanced skill level recommended for these conditions.
Ao Yui is particularly renowned as a macro enthusiast's paradise. The sandy bottom is a haven for a rich variety of nudibranchs, including species like Costasiella, Janolus, Doto, Bornella cf. adamii J.E. Gray, and Melibe. Divers also have a good chance of encountering seahorses, which can be spotted in both yellow and black variations, often clinging to pencil urchins or camouflaged against the sandy substrate. The shallow hard coral areas also host diverse reef inhabitants.
The best time to visit Ao Yui for experiencing the thrilling drift dives is during periods of rising or falling tides, which occur regularly. While no specific season is mentioned for peak animal encounters, the site is likely enjoyable year-round for its macro life. Advanced divers will particularly appreciate the drift diving opportunities, while beginner and intermediate divers can still enjoy the shallower, less current-affected coral areas. Snorkelers and freedivers can also enjoy the shallow coral gardens.
