Clevedon is situated on and round seven hills called Church Hill, Wain's Hill (topped by the remains of an Iron Age hill fort), Dial Hill, Strawberry Hill, Castle Hill, Hangstone hill and Court Hill, the last a Site of Special Scientific Interest. On a clear day there are far-reaching views across the Severn estuary to Wales. When visibility is good, the islands of Steep Holm and Flat Holm in the Bristol Channel can be seen. The tidal rise and fall in the Severn Estuary and Bristol Channel can be as great as , second only to Bay of Fundy in Eastern Canada.