I grew up near a natural feature called the Chesil Bank, it sounds like Georges Bank, but this is made of stones, starting with shingle and little pebbles at one end, getting bigger as it goes along, until 11 miles later, it becomes part of the Isle of Portland (the first one, that Oregon and Maine were named for) which is rock. About 2 miles down from the other end, it seperates from the mainland and holds back a salt lagoon. Where is seperates, is a village called Abbotsbury, and I spent much of my childhood there. On a calm day, you can hear the pebbles as they are rolled about by the tide. The noise comes in two parts, the gentle shush as the water breaks and then a much louder, more urgent shush and splatter as the undertow pulls back. Only one ship has ever made land on that bank, the rest are all pummelled to death by the undertow and the pebbles. It was said that on really quiet nights, you could hear the roar and suck of the undertow for up to 10 miles inland, and if there was a storm at sea.......

LTS