The Green River is one of the rich estuaries in the complex coastal environment known as the “Great Bear Rainforest”. The lush old growth forest, rugged landscape and marine conditions combine to create ideal habitat for one of nature's greatest spectacles: grizzly bears feeding on salmon. The river is a tidal estuary and can rise and fall up to 6-7 feet in a day. The Green River has one of the largest stands of old growth Sitka spruce on the west coast, and teams of scientists are doing groundbreaking research on the area's population of coastal wolves.