blue boat boats bow coast coastal craft detail details dock docked equipment fishing gear harbor harbour lake life mast motor ocean outdoors photo river rope ropes sea shore summer tether tethered transportation vessel water white climb climbing escape knots ladder sky swing swinging twine cleat hawser Jetty knot marine pier tied cold crystal crystals freezing frost ice season string winter background black border design endless groningen twist vector anchor Nyberg sailing transport travel cable fibre grunge macro synthetic texture wire ship yard brown close up cord industry security tool line ply rig roll sail tackle yacht