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The Gilis are blessed with beautiful technical diving because the ocean around us drops off to over 1200m and with the steady currents bring a variety of marine life including sharks, rays, turtles and pelagic fish. Around the 40m range the islands shelf drops off and we have stunning walls starting at 40m - 100m, which because of their depth are only visited by technical divers and are therefore in pristine condition. If you enjoy wreck diving, we have an intact Japanese Submarine Chaser from world war II lying in approximately 45m.



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.

Look in our Technical Gallery to see photos of our amazing technical diving sites.

Blue Marlin daily technical diving tenative schedule

Monday
Cave Wall 30m-100m All Levels

Tuesday
Shark Point/Shark Basin 30m-60m
Nitrox/Twin tank intro dive

Wednesday
Tunang Wall/Rainbow reef 30m-150m
all diver levels

Thursday
Japanese WW2 wreck
Advanced/Nitrox/Nitrox Intro

Friday
Secret reef
9am CCR rebreather / Twin tank pool try out
2pm CCR / Twin Tank / nitrox intro dive

Saturday
Exploratory dives - join BLUE MARLIN TECH CLUB to search for "Wills missing reef"

Sunday
Japanese WW2 wreck dive
Advanced / Nitrox / Nitrox intro

Shark Point

This is one of our most popular dive sites because of its variety of wildlife. Shark Point is suitable for all levels of divers who can have all their own diving experience without interfering with each other.  Because of this the site can be split up into a few different areas that over time have been given different names. From the island it starts with a gently sloping down reef known as Andy’s reef. Up to about 10 metres depth this is the best place to spot our famous green turtles. These magnificent an peaceful creatures can grow up to about 1 metre  in size.  Sloping down to about 20 meters there are all kinds of coral rocks where all sorts of angelfish, puffer fish, butterfly and trumpetfish, parrotfish in all colour variations and triggerfish can be found. A few days before and after full moon it is also likely to come across a school of bumphead parrotfish which are feeding on the hard corals.

In the deep section the dive site lives up to its name. Here you are most likely to find whitetip and blacktip reef sharks. Between the ridges and valleys you will see them resting on the bottom but as soon as you come to close they will swim away.  In this area there is an impressive variety of other marine life such as Trevally, barracuda, snapper and blue spotted stingrays. Especially when the currents are strong it is teeming with life and the dive then can be an adrenaline rush.
Location
West Gili Trawangan
Access    
By dive boat from Blue marlin (10 min.)
Average depth    
Shallow: 15m
Deep: 22 m
Maximum depth
50m

Simon’s Reef

A little off of the north coast of Gili Meno you will find this amazing reef.  As on Deep Turbo and Takat Malang this site consists of a series of seamounts rising up from about 35m. There are 8 major “takats” arranged roughly in a figure of eight and abundant with all sorts of coral variations. The average depth on this dive is around 25m which makes it perfect for nitrox divers. The coral variety is superb, with most types of stony coral well represented plus a good deal of soft corals. You have a good chance of finding the well camouflaged pygmy seahorse in some of the gorgonian fans. There are numerous schools of fish around especially when the currents are strong.
Location
North Gili Meno
Access    
By dive boat from Blue marlin (8 min.)
Average depth    
25m
Maximum depth
40m

Takat Malang

Being close to Simon’s reef this dive site is quite similar in many respects. Again this site consists of big coral heads (takats) where the shallowest has a depth of about 15m. There are about 10 of these takats, each sculpted with overhangs, outcrops and swim throughs – as if someone has been at work on the reef with a giant carving chisel. There is a great variety of hard and soft corals all over the major takats.  Massive gorgonian fans are coming off of the walls  to catch the nutrients passing by. The channels between the takats are great to cruise around and take in the beautiful topography. The dive site is excellent for multilevel dives where at the end of the dive it is possible to see some resident Cuttlefish.
Location
North Gili Air
Access    
By dive boat from Blue marlin (10 min.)
Average depth    
20m
Maximum depth
40m

Sunset Reef

Located on the southern end of Gili Trawangan this is a gently sloping down reef. In the shallows it is quite rocky where giant table corals (Acropora) give shelter to the marine life. The midsection is covered in healthy staghorn corals with isolated hard coral outcrops. This is where you find schools of two-dot snapper, sweetlips, damselfish and different variations of anthias. At around 18m the corals end and the sandy area starts. This is where you are most likely to find whitetip reef sharks that are resting on the sand.  When rainy season kicks in (December to March) and you have a little bit of luck manta ray encounters are most likely to happen on this dive site because of an abundance of nutrients.   
Location
South-East Gili Trawangan
Access    
By dive boat from Blue marlin (5 min.)
Average depth    
15m
Maximum depth
22m
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    

Halik/Deep Halik

Halik reef caters to all levels of divers.  Beautiful coral formations are found in the shallows and along the reef, coral bommies and gorgonian fans.  This is a perfect drift dive with an amazing variety of fish life.  You will find lionfish, moray eels, big groupers and clownfish. Around fullmoon massive bumphead parrotfish feed in schools on the hard corals, leaving a cloud of dust behind them. Green and hawksbill turtles are commonly found feeding on the reef.
The more experienced divers will be dropped on deep Halik, a series of coral ridges and canyons all the way down to almost 40m. The corals here are pristine and reef sharks, eagle rays and giant trevelly are commonly seen.
Location
North-West Gili Trawangan
Access    
By dive boat from Blue marlin (8 min.)
Average depth    
15m / Deep Halik 30m
Maximum depth
22m / Deep Halik 40m


Turbo & Deep Turbo

This is a huge dive site and one of the pearls of the Gilis. The shallow area is of the north east coast of Gili Trawangan where water is being pushed up from the deep.  Massive schools of redtooth triggerfish and fuseliers swim into the current to feed. In this area you can find scorpionfish waiting for an opportunity to feed, moray eels and lion fish hiding between the rocks.
The more experienced diver will dive the deeper section which is situated a little off of the coast of Gili Trawangan. Here there are a series of hills and valleys where the shallowest part is about 16m dropping down to about 32m. Huge sea fans and other interesting coral formations will fascinate you from start to finish. Sometimes you can spot a Leopard shark along with white tip and black tip reef sharks. The majority of the dive is around 20-30m which makes it excellent for nitrox certified divers. Deep Turbo has always been a favourite where exploring the reef and its marine life gives you a truly fascinating dive.  
Location
North-East Gili Trawangan
Access    
By dive boat from Blue marlin (10 min.)
Average depth    
22m
Maximum depth
32m

Japanese WW-II Wreck

This dive is for the little bit more experienced diver as it is a decompression dive. Blue Marlin Dive dives it as an introduction to technical diving and for fully certified technical divers. Because of the depth we recommend to dive it on Enriched Air Nitrox to take full advantage of the experience. Talk to us and we will discuss if we are happy to take you there. 
The Wreck is a Japanese WW-II patrol boat in 45m water which is fully intact sitting perfectly upright in the sand, even the original bullets are still there. It is located in a protected bay off of the coast of Lombok and there is no coral reef around the boat. The boat is about 25m long and is covered in corals and surrounded by wildlife. Schools of batfish, trevally, barracuda and snapper are commonly seen. The wreck is the perfect shelter for lionfish, scorpion fish, moray eels and variations of nudibranchs.   
Location
West coast Lombok
Access    
By dive boat from Blue marlin (25 min.)
Average depth    
42m
Maximum depth
45m


Tunang Wall

Blue Marlin Dive is the only diveshop that is diving this beautiful divesite.  Because of the distance we are taking recreational divers for a two tank divetrip on the slope and our tec-divers can experience the beauty of the deep wall.  The top of the wall starts at a depth of around 35m and drops to about 200m. When you do any tec-diver course with us you will visit this location to do your training. The wall is covered in a large variety of corals and massive gorgonian fans. On the wall we have had encounters with thresher sharks, Molah molah and manta-and devil rays. Usually you will see schools of trevally, fusiliers and snapper. The slope leading to the wall is covered in cabbage and mushroom corals with a diversity of smaller reef fish.  
Location
North-West Lombok
Access    
By dive boat from Blue marlin (30 min.)
Average depth    
Depending on diver level but mostly 25m
Maximum depth
200m

Secret Reef

This site is located between Gili Meno and Gili Air.  Normally there is a north to south current which makes this site ideal for drift diving.  It is a site suitable for any level of diver however there is more to be seen between 10 and 35 metres.  There is an abundance of bright and colourful table corals which form a stunning slope from 10 to 35 metres.
Due to the vast amount of corals present, there is plenty of marine life to see.  This includes stingrays, triggerfish, clownfish, angelfish and pipefish.
Location
East Gili Meno
Access    
By dive boat from Blue marlin (10 min.)
Average depth    
15m
Maximum depth
35m