The north-east area of Kalimatan, is one of the remotest in Indonesia. Here we can find an archipelago the offers world class diving and among its islands three of them are truly spectacular: Maratua, Kakaban and Sangalaki. In its waters we can find from sharks to giant schools of Barracudas or Jacks, large concentration of Mantas and the biggest jelly fish lake in the world and turtles by the hundres. All of it surrounded by a paradisiacal landscape, away from the usual routes, rarely you meet other divers under the water.
Maratua gives us the chance to experience something almost impossible somewhere else in Indonesia, seeing scholling of thousand barracudas, jacks, a lot of pelagic action and a real possibility of encounters with leopard sharks, grey reefs, white tips and hammerheads, do not be surprise if a threasure shark cross your path.
In the inside lagoon we have a great muck dive. Cat fish, frog fish, blue rig octopus, blue ribbon eels, robust and ornate goshts pipe fish, stone fish…among every possible critter might be waiting for us, absolutely a must night dive.
The bottom formation in Sangalaki is shallow and sandy with a lot of small formations of hard corals making it specially illuminated with natural light. One can hardly go beneath the 60 feet, but the diversity is amazing: from small gobies to white tips, from rare nudies to big cuttle fish, the orange elephant ear sponge formations, the gorgonians and the crinoids give colour to the bottom, but Sangalaki is in the top 3 destinations in the world to see Mantas. In the channels either feeding, clearing or just crossing there are mantas everywhere!!!
6 or 7 mantas together is the usual, but encounters with a couple of dozens are possible: UNBELIVEBLE
The inside of Kakaban is almost entirely occupied by a big lake where fresh and SALT water mix. It is believed it has been isolated for over 10.000 years and therefore the species inside are very peculiar.
In its murky mudy bottom we can find anemonies, gobies, nudies, snakes and sea cucumbers, but the most relevant characteristic of the lake is the 4 different species of jelly fish the can be found by the thousands. They have no predators and have lost their natural defences. The only one in Indonesia and very similar to the one in Palau.
Te outside reef is usually hit by the currents and big tunas, sharks and barracudas are patrolling.