alert bay boats defence defence-forces naval navy on-duty patrol patrol-boats patrolling readiness ready seaside secure security vessel vessels boat Dirt dirty fire boat harbor patrol harbor vessels harbour patrol harbour vessels on watch port vessels small fire boat small rescue boat support support vessel water cannon working boat blue britain child children cross crossing enfant Great Britain highway kinder road roads safe sign signs sky uk warning 112 agent beagle car constable emergence emergency law patrol car police police car policia policia segurança pu Portugese police psp safety squad car tow rain anchorage anchored barrier barriers dock docked harbor harbor-front harbour harbour-front jetties Jetty loading seawall vehicles walkways wharf horse horse float mounted police police patrol transport