ancient rome anglo-saxons beaulieu river bramble bank calshot castle cathedra chalk cowes week cricket dartmoor device forts dorset england english channel eocene estuary fleet review flying boat forebulge geographic coordinate system glacier gosport great britain hayling island henry viii of england ice age isle of purbeck isle of wight isle of wight aonb jib julius caesar kaolinite lutetian mary rose mica middle ages netherlands new forest norman dynasty old harry rocks poole harbour port portsmouth portsmouth harbour post-glacial rebound purbeck ball clay ria river hamble river test roman britain royal navy salt marsh scandinavia scotland sea selsey selsey abbey selsey bill short solent south downs southampton southampton water southern england chalk formation special area of conservation spithead the needles tide united kingdom yachting