bathe crawl dip dive diving fin float girl holiday lake paddle plunge pond pool skindive splash swim swimmer swimming water waves ancient architecture Chilterns christian church churchyard England english flood Gravestones graveyard Great Britain historical old reflection religion religious tower winter algae blue coastline Lofoten Islands low mountains natural nature norway norwegian ocean plant rockpool rocks sand sea seaweed shore tide view gate wall background coast colors colours Cornish cornwall eroded erosion pebbles smooth stones texture underwater worn