high tide mark
Ocean's highest reach
The high tide mark is the line on a shore showing where the water reaches at its highest point.
It's often visible as a stripe of seaweed, debris, or discoloration along beaches and seawalls.
The term extends to any peak level: Sales hit their high tide mark in December.
In property law, the high tide mark often determines boundaries between public and private land.
- waterlineLevel water reaches
- tidelineShore's flood boundary
- strandThin fiber piece
- wrackDestruction or marine debris
- seaweedSaltwater aquatic plants
driftwood · debris · flotsam · beach combing · shoreline · beach · sand · salt · foam · kelp · shells · zenith · peak · crest · storm surge · ebb · flood · neap
- rocky shoreboulder, cliff, barnacle, mussel, crab
- shorelinesbeach, shore, shoreline, coastline, coast
- rocky shoresrocky shores, intertidal zone, rockpools, sea stacks, sea cliffs
- splash zonesea spray, salt crust, sea cliffs, sea cliff, rocky shores
- beach thingsbeach, sand, waves, towel, sunscreen
- sandy shoresandcastle, dune, seashell, driftwood, footprint