Jökulsárlón is located directly off route 1, you will drive over a bridge and there is parking on right and left side of the road. Do take care when pulling into the parking lot as you can get stuck on the edge of the road creating a traffic jam.
Jökulsárlón or Jokusralon or Glacial lagoon is a very unique place in Iceland. A glacial lake formed at the edge of the glacier and icebergs separating from it float into the lagoon. Ice on this glacier is known for its bluish color and while icebergs are all colors the beautiful blues dominate.