IntermediateReef · Muck
Luca Marine Sanctuary

About This Dive Site
Luca Marine Sanctuary (Dauin)
Welcome to Luca Marine Sanctuary, a vibrant and accessible dive site nestled along the Dauin coast in the Philippines. As one of Dauin's four municipal sanctuaries, alongside Mainit, Dauin, and Masaplod, Luca Marine Sanctuary is a protected no-take zone, ensuring a thriving underwater ecosystem for divers to explore.
Dive Conditions and Site Features
This beginner-friendly dive site offers a maximum depth of 19 m, making it ideal for Open Water certified divers and those looking for a relaxed exploration. Divers will find mild currents, allowing for comfortable and unhurried dives. The water temperature in Dauin typically ranges from a warm 26°C to 30°C, providing pleasant conditions year-round.
Luca Marine Sanctuary is a captivating blend of reef and muck diving. The site boasts clear waters and healthy coral cover, complemented by several artificial reef structures, including reef cones and even some wrecks, which have been strategically added to create a rich and diverse habitat. This combination makes it a fantastic location for underwater photographers, whether you're focusing on wide-angle shots of the reef or macro subjects hidden in the sand.
Marine Life Encounters
Prepare to be delighted by the abundant marine life that calls Luca Marine Sanctuary home. Divers can regularly encounter graceful Green Sea Turtles (Chelonia mydas) as they forage among the corals and seagrass. The vibrant reefs are teeming with assorted Butterflyfish (Chaetodon sp.) and the striking Regal Angelfish (Pygoplites diacanthus). Keep an eye out for the charming Barrier Reef Anemonefish (Amphiprion akindynos) nestled within their anemone hosts.
Beyond the reef, the muck areas reveal a treasure trove of macro critters. Divers may spot flamboyant cuttlefish, various species of frogfish (Dauin is renowned as a "Frogfish Capital"), ghost pipefish, moray eels, and a variety of colorful shrimps and crabs, including coral crabs and porcelain crabs.
Safety and Recommendations
While Luca Marine Sanctuary is a generally calm dive site, we advise divers to be mindful of boat traffic, particularly when entering and exiting the water, as this is a common hazard in coastal areas. Additionally, although the maximum depth is manageable for Open Water divers, we recommend monitoring your depth and air consumption to ensure a safe and enjoyable dive. The sanctuary's protected status means fishing and boating are prohibited within its boundaries, contributing to the pristine environment and abundant marine life.
Whether you're a beginner looking to gain experience or an experienced photographer seeking unique subjects, Luca Marine Sanctuary offers a relaxed and rewarding underwater adventure.
Current Conditions
Typical current strength at this dive site
Mild
Light current that is easy to swim against. Comfortable for most certified divers.
Strength Scale
None
Mild
Moderate
Strong
Best Time to Visit
Monthly conditions and seasonal highlights — tap a month
Peak diving season with optimal visibility, calm seas, and best marine life encounters.
Marine Life
4 species recorded at this site

Green Sea Turtle
Chelonia mydas
Site occurrence not yet documented
No dated observations available.
Regal Angelfish
Pygoplites diacanthus
Site occurrence not yet documented
No dated observations available.
Barrier Reef Anemonefish
Amphiprion akindynos
Site occurrence not yet documented
No dated observations available.
Butterflyfish (assorted)
Chaetodon sp.
Site occurrence not yet documented
No dated observations available.
Hazards & Safety
Be aware of these potential hazards at this dive site
Boat traffic
LowBangka moorings nearby; ascend inside the sanctuary mooring buoys
Depth
LowShallow-to-moderate profile (max ~20 m); low depth risk
Certification Required
A minimum of Open Water certification is required to dive this site.
360° Underwater View
Immersive panoramic view of this dive site
360° panorama coming soon
Immersive underwater views will be available when panoramic imagery is uploaded
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AdvancedDepth Profile
Vertical range at this site
Minimum Depth
16 ft
Shallowest point
Average Depth
39 ft
Typical dive depth
Maximum Depth
66 ft
Deepest point
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