Kakaban is only one of 31 islands in Derawan Islands, located in Derawan Archipelago, Berau Regency of East Kalimantan. With an area of approximately 774.2 hectares. Kakaban Island including one of the four islands are quite broad in Derawan Islands. Another third of Derawan Island, Maratua, and Sangalaki.
Kakaban attract foreign tourists with some unique, one of the uniqueness is the lake on the island namely Kakaban Island. Which in the lake is filled by a mixture of rainwater and seepage of sea water from the soil pores and create a habitat for different endemic in most areas of other lakes in the world. The lake area of 5 km2 is a habitat of stingless jellyfish.
Kakaban Lake is seawater which trapped in Kakaban Island, added with water from the soil and rain water since 2 million years ago. Kakaban Lake is a prehistoric lake on the time of Holosin transition. Kakaban Lake has walled cliffs as high as 50 meters, resulting in sea water could no longer be caught out, into the lake. Administratively, Kakaban Lake is on Berau District of East Kalimantan. In the world, there is one more island like this one in Palau, Micronesia Islands in the Southeast region of Pacific Ocean. Thus Kakaban Island is the only island in Indonesia which has a lake in the middle of the sea.
Kakaban Island is one of Derawan Islands group was nominated as a World Heritage Area. For those enthusiasts of nautical tourism, the island has a population and diversity of jellyfish that most in the world, namely four unique species of jellyfish are not sting. Kakaban Island is surrounded by high cliffs, beyond the cliff west plains stretching as wide 50 meter comprising of rock.
Some parts of the land are still covered with shallow water sea about 30 cm. At the puddle was a swarm of small-sized fish anchovy bright green surrounding reef. At the foot of the cliff there is a wooden staircase that ascends and decline within 120 meters, leads you to the edge of lake behind the hill. This ladder is made of meranti wood and to the left of the stairs looking grove of mangrove trees (Rhizophora) interspersed genera of tropical trees towering form of mangrove forests, as Tanjang (Bruguiera), apiapi (Avicennia), and pidada (Sonneratia).
Kakaban Island ranks as the top three world-class diving spot and make this island as a dream island for divers. In Kakaban Island, the tourists can perform a variety of activities including diving, you can see different types of fish such as sharks, mermaid, barracuda, green turtles and so forth. You can also swimming, snorkeling, fishing, walk along around the island, watching green turtles, Enjoy a culinary tour with a variety of food choices, shopping various souvenir made from seafood.
To get there:
Kakaban Island can reach from other islands in Derawan Island using rented speedboat. The capacity is up to 15 passengers and the price is IDR 500,000 – IDR 1,000,000 per day for 45 minutes (from Derawan Island), 30 minutes (from Maratua Island) and 20 minutes (from Sangalaki Island).
The drop-off point is also a wonderful dive. The wall drops down to 250m, and abounds in colourful fish, seahorses, and corals.
Blue Light Cave
The cave starts at a crack at 2 metres (6 ft 7 in) deep and descends through a narrow chimney. At about 21 metres (69 ft) the chimney opens into a large cavern that extends for about 120 metres (390 ft). The exit is a long vertical crack in the wall at 44 metres (144 ft). The name of the cave comes from the blue light of the sea which is seen from the cavern.
“THE JELLYFISH LAKE” AT KAKABAN ISLAND:
The Jellyfish Lake is actually a snorkelling site (you won't be allowed to dive here). It is just 5 minutes away from the “Barracuda Point”. There are two trails to get to the lake, the first one was built with wooden planks all the way to the lake. It goes up a small hill and down all the way to the lake which will take you 10 to 15 minutes by walking. The second trail at the back of the lake is slightly longer. You have to climbs up a small lime store rock hill and then walk along a small jungle track which is going gradually downhill to the lake. In a glance, it is at least twice the size of the “Jellyfish Lake” in Palau, Micronesia. The visibility was about 6 to 8 meters and there are all together 4 different types of jellyfish, which areCassiopeia Ornate, Mastigias Papua, Aurelia Aurita and Tripedalia Cystophora. These jellyfish are quite special; unlike their sea-living counterparts, they have been living in a lake, protected from their natural predators such as turtles and barracuda. Through time therefore, they have lost their ability to sting simply because they have had no need for them.