- barrier reef
- bed
- chart
- continental shelf
- coral reef
- cross-current
- current
- ebb
- ebb
- freshwater
- high water mark
- iceberg
- ice cap
- ice pack
- ice sheet
- low water mark
- marine
- maritime
- ocean
- oceanography
- pack ice
- rock pool
- roller
- saltwater
- sandbank
- sand bar
- sea
- sediment
- sedimentary
- shoal
- sound
- soundings
- spray
- spring tide
- spume
- strait
- strength
- submarine
- surf
- tidal
- tidal wave
- tide
- tide-mark
- tide pool
- tidewater
- trench
- tsunami
- undersea
- undertow
- wave
