

Best for intermediate divers, 12-18m, boat entry, moderate current.
Gilly Reef is a boat-accessible site located in the Tunku Abdul Rahman Marine Park, Malaysia. The reef structure sits at depths between 12 and 18 metres, with an average depth of 15 metres. Divers should be prepared for moderate currents, which can pick up quickly, making this site suitable for intermediate divers. Visibility is variable, ranging from 10 to 30 metres. Due to active boat traffic in the area, the use of a surface marker buoy is recommended for all divers. Local facilities include air fills and a dive shop on Mantanani Island, which can provide guidance on tidal flow and optimal departure times.
6.71892, 116.30815
Book early morning departures for the best conditions at the pinnacle, as currents and visibility are typically at their most favourable during dawn hours.
Requires boat access; entry is typically from the boat's up-current position.
Recorded at this site
Depth
12-18m
Visibility
10-30m
Skill Level
Intermediate
Entry
Boat
Boat required
Water Temp
27-30°C
Current
Moderate
Best Time
May, Jun
The reef sits at depths between 12 and 18 metres, with an average depth of 15 metres.
No, this site is intended for intermediate divers due to the presence of moderate currents.
Access to this site is by boat only.
The main hazards are boat traffic near the surface and moderate currents.
This site is designated for diving activities.
Diving at Gilly Reef in Sabah requires the following certifications: Open Water. Always dive within your training limits.
A rashguard or 2mm shorty is recommended for diving at Gilly Reef in Sabah. Water temperatures range from 27°C to 30°C.
The best months to visit Gilly Reef in Sabah are May and June. Conditions outside these months can still be good but are less predictable.
Expect moderate currents at Gilly Reef in Sabah. Good buoyancy control and some drift diving experience is helpful.
Visibility at Gilly Reef in Sabah typically ranges from 10 metres to 30 metres. Conditions vary with weather, tides, and seasons.