
Mactan & Olango · Philippines · Reef · Wall
Agus
Table corals from 3 m down to 40, and nudibranchs on all of it
Area photo: DAVID · CC BY-SA 3.0
Agus is a reef and wall on the Marigondon stretch of Mactan's coast, with diving published from 3 to 40 metres. Large table corals stand on the shallow reef and carry on down over the drop. Its reputation is macro: multiple species of nudibranch make both the reef and the wall face their home.
Where it is and how deep
10.2698° N, 123.9920° EPublished position for this site.
The dive
The published profile runs from 3 metres out to 40, and the site is dived at whichever end suits the team, which is why the same name turns up on beginner logs and advanced ones. The shallow reef carries large table corals standing clear of the bottom, and it is the part of Agus that stays inside an Open Water plan. Below it the reef turns over into wall, and the table corals carry on down the face into deeper water.
What most divers come for is small. Both the reef and the wall hold multiple species of nudibranch, so the site is worked slowly and close to the rock rather than swum end to end. Teams either stay shallow among the table corals or drop the face toward the 40-metre end and come back up along it, which is the profile that makes the advanced card matter.
Marine life and season
- Nudibranchs
- Macro critters
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Good | Good | Prime | Prime | Prime | Fair | Fair | Fair | Fair | Fair | Fair | Fair |
Season follows Mactan & Olango: Mar–May, the hot dry season, is the usual window; the Jun–Nov rains cut visibility on the house reefs, and typhoon risk runs highest around Nov–Dec, as Typhoon Rai showed in December 2021.
Questions divers ask
How deep is the Agus dive site?+
Diving is published from 3 to 40 metres: a shallow reef of large table corals that suits Open Water divers, and a wall below it that runs to advanced depth.
Sources
- Agus — Scubago
More dive sites in Mactan & Olango
Wall
A wall from 20 m to about 73 m off Olango's north-west side
Wall
A channel wall to 35 m with a current that runs hard
Sharks at 35 m off Olango's northern tip, hammerheads among them
A blue opening in the wall at 25–27 m, depending on the tide
Cave & cavern
A 29 m roof, a 40 m floor, and a chamber full of flashlightfish
Wreck
A ship at 50 m that a typhoon stood back upright
Reef
A wide shield reef with the wall starting at 5–7 m
A drop-off at 15 m running down to 50, off Olango's pier
Similar dives elsewhere
Walls from 7 m to beyond 40 m under a seabird island
A drop-off 80 m off the beach, from under 2 m to past 40 m
An easy north-coast reef on the Napaling and Doljo road trip
The peninsula corner where the reef drops to 36 m



