Gerombong dive site

Kubu

Gerombong Diving

Light to strong; surface can become choppy. The guide selects the route and profile for the group, tide and surface conditions.

Depth range
5–40 m
Access
Boat
Environment
Wall, Drop-off, Black-sand slope, Macro, and Drift
Experience level
Beginner to Advanced, route- and condition-dependent

About Gerombong

Gerombong is a wall, drop-off, black-sand slope dive in Kubu, with a working depth range of approximately 5–40 m. The site is known for colorful corals, ghost pipefish, nudibranchs, juvenile lionfish, and frogfish. Conditions remain variable, so the route, maximum depth and suitability are confirmed by the local guide on the day.

Availability notice

Conditions-dependent dive. Final operation and diver suitability are determined after the day-of-dive current, weather and experience assessment.

Site highlights

  • Wall, Drop-off, Black-sand slope, Macro, and Drift profile
  • Usable depth range from approximately 5 to 40 m
  • Potential encounters include colorful corals, ghost pipefish, nudibranchs, and juvenile lionfish
  • Light to strong; surface can become choppy

Before you dive

Recommended certification

Open Water for selected shallow slopes; Advanced Open Water or equivalent for deeper wall profiles or stronger current

Local guide recommended

Explore with a local guide familiar with the site and its entry and exit points.

Diving conditions & best time to visit

Water temperature
27–30 °C
Visibility
10–30 m

Light to strong; surface can become choppy

Best months to dive

Year-round when daily sea conditions permit; the drier April–November period often offers easier shore conditions.

Diveable year-round when shore entry and sea state permit. Visibility, current and pebble-beach surf vary with weather; local teams select the safest entry and route each day.

Conditions may change

Typical conditions can vary on the day of your dive. Confirm current conditions with the dive team before entering the water.

Marine life & activities

  • Colorful corals
  • Ghost pipefish
  • Nudibranchs
  • Juvenile lionfish
  • Frogfish
  • Shrimp
  • Octopuses
  • Larger reef fish
Snorkeling Freediving Night diving

Access & safety

Entry & Exit

Beach or short boat access from Kubu

Boat departure point
Kubu local shore entry

Safety notes

Agree a maximum depth because the wall continues deep, maintain visual contact with the guide and reassess pebble entry or boat pickup when the surface is choppy.

Dive tips

  • Follow the local guide’s site- and tide-specific briefing.
  • Agree a maximum depth within certification limits; the published site range is 5–40 m.
  • Maintain neutral buoyancy and avoid contact with coral, artificial structures and the seabed.
  • Agree a maximum depth because the wall continues deep, maintain visual contact with the guide and reassess pebble entry or boat pickup when the surface is choppy.
  • Treat wildlife encounters as possible, never guaranteed, and give animals space.

Underwater photography

A flexible setup works best: use a macro lens for small subjects on sand, rubble and coral, or wide angle for the broader reef structure. Maintain stable trim, avoid stirring sediment and never move or touch wildlife for a photograph.

Site map & location

Gerombong dive site planning map

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