the masts of single-masted sailboats. sailing, seafaring,

bars berth berthed berthing boats boom cross-beam derrick dock dockside erected flagpoles flagstaff foremast harbor infrastructure mainmast marine maritime mizzenmast mole moor moored mooring nautical navigation pennon pier poles port quay quayside sail sailboat sailer sailing sailor seafarer seafaring ship ships spars topgallant transom transport transportation wharf wharfage yard yardarm