Lagoons are shallow bodies of water that gets separated from larger water bodies due to the formation of reefs or barrier islands. Atoll lagoons form as coral reefs grow upwards while the islands that the reefs surround subside, until eventually only the reefs remain above sea level.
From Wikipedia, the free encyclopedia. John Knoll (born October 6, 1962) is an American visual effects supervisor and chief creative officer (CCO) at Industrial Light & Magic (ILM).
Plot[edit] An old friend of John Winchester, Ellen Harvelle is the wife of hunter William Anthony Harvelle and the mother of Jo Harvelle. She runs Harvelle's Roadhouse, a saloon and pub frequented by hunters of supernatural creatures.