The Bristol Channel is a body of water located between South Wales and the southwest of England. It connects the River Severn to the Atlantic Ocean and is known for having one of the highest tidal ranges in the world. The channel is approximately 50 miles long and varies in width, with its narrowest point being about 20 miles. The area around the Bristol Channel is rich in maritime history and features several important ports, including Bristol and Cardiff. The channel is also home to various wildlife and is a popular destination for recreational activities such as sailing and fishing.