<div>If you were at sea or on a river or dam and got caught in a dense fog, it may be nice if your map showed both the normal high water mark and the normal lower water mark for both dam and river/coastline boat ramps.</div>
<div> </div>
<div>Therefore maybe use the node=slipway for both and have a service road in between.</div>
<div> </div>
<div>For dams, maybe show the 80% full point and the 20% full and for tidal ramps show the high and low astronomical tide points</div>
<div>(the HAT and the LAT)</div>