Siaes Corner

Siaes Tunnel

Ulong Channel

Ulong Sand Bar

Most Koror-area trips are run as full-day boat excursions with a provided lunch, often enjoyed on a nearby uninhabited island. Fresh fruit, rice, and grilled fish or chicken are typical, and operators cater to dietary needs if advised in advance. Evening meals are back in Koror, where a wide range of restaurants awaits. The inner bays also make a calm setting for a surface-interval snack, and many boats carry a cooler with cold drinks and local fruit to keep you energised between dives.

Palau Pacific Resort

Palau Royal Resort

West Plaza by the Sea

Rose Garden Resort

Ulong Island and its famous channel sit in the central Rock Islands and are revered for one of the most exhilarating drift dives on the planet. Ulong Channel is a coral-walled corridor that funnels a powerful current past cabbage coral gardens and a renowned snapper spawning site, delivering a near-continuous parade of jacks, snappers, grey reef sharks, and whitetips. The broader Ulong area also offers Siaes Corner and Siaes Tunnel for those who love big walls and swim-throughs, and the Ulong Sand Bar for a gentle macro interlude. Steeped in Palauan history, Ulong is also home to ancient stone gardens and a traditional meeting house, making it a cultural as well as underwater highlight. Boats reach Ulong from Koror in about an hour, and the sites are frequently combined with Ngemelis on liveaboard routes through the central lagoon.

Ulong Island & Ulong Channel

The Ulong Island & Ulong Channel region is reached by boat from Koror, the dive hub of Palau. Day boats and liveaboards depart the Koror and Malakal marinas, with transit times varying by site. Some southern and northern regions are best experienced on multi-day liveaboard trips that time dives to the tidal windows.

Dive Sites in Ulong Island & Ulong Channel

Siaes Corner

Siaes Tunnel

Ulong Channel

Ulong Sand Bar