Deep Rock
A small pinnacle off Malapascua's northern tip whose flat top is already at 14 metres, with soft coral walls to 30 and no shallow ground on it.
Last updated August 2026
The dive
The shallowest part of this dive is the top of the rock, and the top of the rock is at 14 metres.
The pinnacle is small, a sunken island off the northern tip with sheer wall on most sides and a slope running east off the south face. Soft coral, fans and sponges cover it. The walls fall to 30 metres, where sand begins.
Because the structure is small, the dive circles it. You work the wall for the coral cover and the south slope for the small animals, then come back up onto the plateau to finish. Frogfish are what guides look for, and finding them means going slowly through the folds of the coral. Nudibranchs, shrimps and crabs fill in the rest.
Getting on and off the rock can be work. It stands alone in open water, and both the descent and the ascent have been described as a fight when the water is moving.
What makes it special
Most of Malapascua's critter diving happens shallow and close in, on sand a few minutes from the beach in 10 or 12 metres of water. This one puts the same class of animal on a soft coral wall at twice that depth.
The difference is operational, not scenic. No shallow shelf waits at the end of the no-stop clock and no reef top absorbs the last twenty minutes, so the choice a diver makes here is between the plateau at 14 to 17 metres and the wall under it. Nitrox comes up for that reason and no other.
Pygmy seahorses are the name that draws people out, and the claim is hedged where it is sold: certain seasons, with luck. Harlequin shrimp are offered the same way. What the rock gives up with no season attached is the frogfish and the coral cover.
Know before you go
Two different dives are sold under this name. One shop's Deep Rock starts at 5 metres and slopes to 22, five minutes out; the others describe a pinnacle a quarter of an hour away with its top at 14. A day plan will not tell them apart, so the question belongs at the counter before anyone pays. Deep Slope and North Point sit within a few hundred metres of this rock, and North Rock is close enough in name to be confused with it, so a depth figure published for one of them travels easily onto another.
If this is the dive you want, say so when you book. A booked trip here was called off for strong current on a day the current turned out to be mild, and this is the site divers say gets swapped out when the day is against it.
A torch earns its place. The animals are in the folds of the coral on a wall below 20 metres, and ambient light does not get into them.
The island has no chamber in service. That is true of every dive around Malapascua and it carries more weight on the deepest one, which is this.
Why Dive Deep Rock
What makes this dive site stand out.
- Top already at 14 metres
The flat top sits at 14 to 16 m, so the shallowest ground on the dive is still deep
- Soft coral on sheer walls
Coral, fans and sponges cover walls that fall from the top to sand at 30 m
- Macro worked on a wall
Frogfish, shrimps and crabs on a vertical face instead of on shallow sand
- One small rock to circle
An isolated pinnacle in open water, so the whole dive stays within metres of it
Depth & Profile
Location
11.3501°N, 124.1177°E
Conditions & difficulty
Summary
Nothing on the rock is technical. The grade comes from where the dive sits: the shallowest point is the top of the pinnacle at 14 to 16 metres, the site is an isolated rock in open water with nothing to navigate off, and current here is variable enough that trips get called off for it.
Safety considerations
What can go wrong here, and what divers do about it. Conditions change - take the briefing from the operator on the day.
- Depth: The shallowest ground on the site is the top of the rock at 14 to 16 metres, and the animals people come for sit below that on the walls.Plan gas and no-stop time on the basis that nothing shallow is available, and read the computer between subjects.
- Current: Current here is variable. It has been strong enough for a booked trip to be cancelled, and mild on the same rock when divers went anyway.Ask about conditions at booking, stay with the guide, and carry an SMB for an ascent that happens in open water.
- Orientation: An isolated pinnacle with open water on every side. A diver who comes off the structure has nothing to reference.Keep the rock in sight and turn the dive on it. Do not swim off it to look for anything.
- Remote location: No recompression chamber is in service on the island, and this is the deepest dive on the local rotation.Carry insurance that covers hyperbaric treatment and dive the shallow half of your plan, not the deep one.
Marine Life
Regulations
No protected-area designation applies to this pinnacle. Eleven areas in the municipality are designated by ordinance and it is in none of them, and it is absent from the eighteen reefs a monitoring survey of this coast measured. Some dives on the same local rotation do carry reserve status.
Frequently Asked Questions
How deep is Deep Rock?▾
The number to plan on is the top of the pinnacle, and it sits at 14 to 16 metres. Two shops that sell the dive agree on that, and it is the shallowest ground the site has. Below the top, the walls are described as falling to 30 metres where sand starts, so how deep your dive goes is decided on the boat and not by the rock. Figures of 22 and 25 metres circulate under this name. One of them belongs to a chart describing a dive that begins at 5 metres, which is not the site the other shops describe, and neither is a published maximum for this dive.
Can an Open Water diver dive Deep Rock?▾
In practice they are taken here, and one diver was surprised enough to write about finding junior Open Water students on the boat for it. The plateau at 14 to 16 metres is inside Open Water limits, so a dive kept on top of the rock stays inside them too. What the site withholds is a shallow half. There is no reef top to move onto, no garden to finish on, the walls below the plateau run past those limits, and the small animals that justify the trip live on the walls. Advanced Open Water is what shops recommend, nitrox is recommended for divers qualified to use it, and the reason behind both is the same one.
Which dive will your boat call Deep Rock?▾
Settle it at booking, because two different dives are sold under the name. Two shops describe a pinnacle 15 to 20 minutes out with its top at 14 to 16 metres and walls to 30. A third sells a Deep Rock five minutes from the beach that starts at 5 metres and slopes to 22. Then there are the neighbours: Deep Slope sits a couple of hundred metres away, North Point closer still, and North Rock is sold under a name close enough to travel. A site name on a day plan is not enough to know what you are diving.
Why would a booked Deep Rock dive end up somewhere else?▾
Current is the reason usually given, and it has been given on a day when a diver who insisted on going found the current mild. Divers describe this as the local dive most likely to be swapped out when conditions or staffing are against it. None of that is grounds to distrust a cancellation, because an isolated rock in open water is where current deserves respect. It is grounds for saying at booking that this is the dive you want, and for asking again on the beach.
Is Deep Rock a marine protected area?▾
No. Eleven protected areas in this municipality are designated by ordinance and this pinnacle appears in none of them. It is also absent from the eighteen reefs measured by a monitoring survey of the coast. The point is worth making because the neighbours are not all alike: some dives on the same rotation do carry reserve status, so saying nothing here would leave the question open. No permit attaches to diving the rock and nothing is charged for it.
What will you actually see at Deep Rock?▾
Soft coral, fans and sponges over the whole rock, with small animals living in among them. Frogfish are the reliable find, and nudibranchs, shrimps and crabs come with them. Harlequin sweetlips hold around the structure. Pygmy seahorses are the name that pulls photographers out here, and they are hedged at the point of sale: some seasons, no promise, and the species is not named anywhere they are mentioned. Harlequin shrimp are described the same way. What the rock does not offer is anything big. No thresher sharks, no pelagic traffic, no wreck.
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