" Prior to 1950 the 1Â½ km long course of the glacial river Jokulsa was uninterrupted by any lagoon. Since then the glacier tongue has retreated and a lagoon, gradually increasing in area, was created. The average flow of the river is 250-300 mÂ³/sec. and the edge of the glacier snout floats on the water. It calves into the lagoon and icebergs of different sizes can be seen aground and melting rather quickly. The lagoon is 284 metres deep. The river gets shorter and shorter, mainly because of the constant sea erosion, which eventually is going to destroy the bridge (built in 1967). The result will be a deep bay, which is going to grow longer the further the glacier snout retreats. The lagoon's surface has been lowered almost to sea level and sea water enters with the tides, increasing the water temperature. Salmon, capelin and herring enter the lagoon and the harbour seals follow the food. Eider ducks are very common on the lagoon. It is an unforgettable adventure to take a boat trip between the icebergs to admire the natural ice sculptures and the blue green colour of the ice. Just east of the lagoon is a small restaurant with toilets. The distance from the capital along the south coast is about 400 km " Text extract from http://www.nat.is/travelguideeng/jokulsarlon.htm This is one of my favourite photos of Iceland. The scenery was absolutely breathtaking and had great photographic potential, I can't begin to do it justice.