seamark
Coastal navigation guide
A seamark is any landmark or structure visible from the sea that helps sailors navigate—a lighthouse, buoy, or prominent coastal feature.
The term is largely historical or literary now, as GPS has replaced visual navigation: The old church tower served as a seamark for generations of fishermen.
Coastal beacon tower
- buoyTethered nautical signal
- channelPassage for transmission
- chartData shown visually
- pilotageShip navigation expertise
bearing · waypoint · navigation · compass · sextant · astrolabe · quadrant · positioning
Loud maritime warning device
- lightVisible electromagnetic radiation
- flashingRepeated brief illumination
- warningAlert about danger
- daymarkDaytime navigational reference point
visibility · guidance · alert · identification · recognition · lantern · beam · occulting
lighthouse
Coastal beacon tower
pilotage · bearing · waypoint · navigation · compass · sextant · astrolabe · quadrant · positioning · landfall
foghorn
Loud maritime warning device
daymark · visibility · guidance · alert · identification · recognition · lantern · beam · occulting · flare
mariner
One who navigates ships
ship · vessel · anchorage · port · starboard · helm · nautical · maritime · pilotage · approach
headland
Coastal land jutting seaward
- promontoryElevated land jutting waterward
- cliffVertical rock wall
- bluffCalculated false front
cape · point · peninsula · inlet · bay · cove · harbor · estuary · shoreline · foreshore
seamarklandmark
Notable point of reference
waypoint · mile marker · road sign · trail blaze · cairn