The diving here is predominantly drift, although some sites have a window of several hours without current. Most sites are reefs or walls and we also visit a wreck from the second world war. The deepest walls range from 45m to around 85-150m ( 450ft). A great number of these deeper reefs give relatively easy access to shallow water for decompression. On others, drifting into open water for decompression is normal.
Our area is swept by tidal currents keeping water clear and clean, and we have enjoyed a protected status from fishing since 1998. The less visited deeper areas are consequently pristine, providing tremendous topography and fascinating marine life.
We customize our diving trips to meet your needs and interests, and will follow the general guidelines found below. There will be no large mixed ability groups. Divers will be given the opportunity to enjoy their diving and develop at a level which is comfortable for them.
Best time to dive? All year is fine, March to October is very reliable weather, very warm both in and out of the water.
We always have some sites sheltered from prevailing seasonal weather conditions and typically lose only three or four days diving a year due to rough conditions. This makes anytime of year good for diving.
Temperatures in water range from about 28-30c in December-February and 26-28c from May till October.
Look in Blue Marlin pictures to see photos of our amazing technical diving sites.
Blue Marlin daily technical diving tenative scheduleMonday
Cave Wall 30m-100m All Levels
Shark Point/Shark Basin 30m-60m
Nitrox/Twin tank intro dive
Tunang Wall/Rainbow reef 30m-150m
all diver levels
Japanese WW2 wreck
9am CCR rebreather / Twin tank pool try out
2pm CCR / Twin Tank / nitrox intro dive
Exploratory dives - join BLUE MARLIN TEC CLUB to search for "Wills missing reef"
Japanese WW2 wreck dive
Advanced / Nitrox / Nitrox intro
Blue Marlin - Guidelines and Policies for Safe Technical Diving
Outside of training activities, diving will be supervised in water (or from surface where deemed appropriate) by qualified Blue Marlin staff. Diving will take place at sites appropriate for the experience levels and certifications of the individuals involved. All decompression diving activities will be backed up by dedicated boat cover equipped with surface oxygen, additional decompression gases as required, and with mobile phones.
We require that all divers plan their dives to comply with the following guidelines:
- For any dive deeper than 40 metres, or any dive where decompression gases are used, a dive plan must be completed and approved by relevant Blue Marlin staff.
- All gas mixes MUST be analysed, correctly labeled for MOD and signed and dated by the user. Fill station log must be signed.
- Maximum bottom PO2 will be 1.5 ATA or lower.
- Maximum decompression PO2 will be 1.6 ATA or less.
- All divers must carry sufficient gas to complete their dives within rule of thirds, or as appropriate for the dive plan.
- On Trimix dives, maximum END will be 40m/130ft.
- Divers must be equipped with at least one reel and SMB/ lift bag, with two being strongly encouraged. A whistle and flashlight are highly recommended on all dives.
- All technical divers must provide proof of insurance upon arrival at Blue Marlin Dive.
Divers must carry back up depth and time information.
- Blue Marlin staff will reserve final judgment on suitability and choice of the dive site and help you to plan your dives with the latest diving software.