a sentry in the morro castle at old san juan puerto rico

tower sea blue landmark vacation coast ocean beach lighthouse rock shore temple building cape water sand tourism bay viejo juan puerto rico historical morro castle sentry watchtower overlooking old architecture attraction caribbean castle city construction fort fortress historic historical history juan landmark morro old puerto rico sentry box tower travel ancient blue building castillo colonial daytime fortification island ocean felipe del sky spanish stone wall sunny day tourism tropical united states puertorico