alone blue boat channel coastline hills island lonely motorboat mountains natural nature norway norwegian ocean remote rock sea shore snow water wild wilderness beacon distant far islands islet Lofoten Islands northern warning boulders countryside exercise flow footpath green hike hillside landscape mountain path river track trail walk beach footprints holiday horizon rocks sand summer tide vacation wave birds breakwater groyne seagulls seaweed view Camp cloud misty sky tent algae bladderwrack boulder low tide plants rockpools low plant pool rockpool