

Best for beginner divers, 2-15m, shore entry, mild current.
Lonos Marine Sanctuary, situated in a sheltered bay adjacent to Tiamban Beach, is a protected reef area established for the conservation of giant clams. The site features accessible coral gardens that are well-suited for snorkelling. Divers and snorkellers can expect depths ranging from 2 to 15 metres, with an average depth of 8 metres. Conditions are generally mild, with visibility typically between 10 and 25 metres. Entry is made directly from the shore, making this a convenient location for beginners to explore the reef environment.
12.56680, 122.24420
This sanctuary was established to protect giant clams.
Located in a bay near Tiamban Beach in Lonos.
No known hazards
Recorded at this site
Depth
Up to 15m
Visibility
10-25m
Skill Level
Beginner
Entry
Shore
Water Temp
27-30°C
Current
Mild
Yes, the site is suitable for beginners due to its sheltered bay location, mild currents, and easy shore access.
The depth at this site ranges from 2 to 15 metres, with an average depth of 8 metres.
Yes, Lonos Marine Sanctuary is a designated snorkel site with a rating of 4 out of 5.
Access to the reef is via a shore entry from the adjacent Tiamban Beach.
Water temperatures range from 27C to 30C, with the warmest months being May through September.
A rashguard or 2mm shorty is recommended for diving at Lonos Marine Sanctuary (Tiamban Beach) in Romblon. Water temperatures range from 27°C to 30°C.