Siargao · Philippines · Reef · Coral garden
Daku Arch
A submerged rock arch to swim through, framed by hard and soft corals
Daku Arch lies beside Daku Island, on the left side when facing General Luna. Its centrepiece is a submerged rock arch carved into coral rock that divers swim through, framed by hard and soft corals. It is usually dived together with the second site at the island.
Where it is and how deep
9.7412° N, 126.1630° EApproximate position — the dashed circle shows where the site lies; your operator's briefing has the mooring.
The dive
The reef runs from 10 to 20 m around the arch, a swim-through in coral rock surrounded by hard and soft corals. The site is calm and sheltered with minimal current. Daku Island has two sites, and boats usually dive them together.
Marine life and season
The sources we used don't single out particular species here.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Fair | Fair | Prime | Prime | Prime | Good | Good | Good | Good | Good | Fair | Fair |
Season follows Siargao: March to May brings the calmest seas and clearest water; from November to February bay diving continues but the Pacific sites, Blue Cathedral included, are less predictable.
Sources
- Siargao diving and snorkeling guide — Mariden Resort
- Siargao Dive Guide: Blue Cathedral & Reef Walls — Philippine Dives
- Rock Island dive site — ScubaGo
- OpenStreetMap: Daco Island — OpenStreetMap
More dive sites in Siargao
Cave & cavern
An open Pacific cavern where schooling jacks and barracuda move through
Coral garden
Dense, well-preserved hard coral cover on an easy, relaxed reef
Reef
A coral reef beside a surf break, falling to sand in the channel
Reef
A resident pink frogfish on three linked reefs near Naked Island
Wall
Whitetip and blacktip reef sharks resting on the reef and patrolling the wall
Similar dives elsewhere
Reef, mini wall and coral garden from 12 m down to 30 m
Coral gardens on a gentle slope, with the best of the reef above 18 m
Shallow 12-15 m reef that links across to Pinnacle 2
Coral at 10–15 m with 20–25 m visibility between two islets



