California
The tide at San Diego
Mission Bay and the tidepools south of it live or die by the lower of the day's two low tides.
A Wavepane at San Diego, California. See it live →
What the water does here
San Diego runs two highs and two lows a day, and rarely the same size twice. Between low and high the water moves about 3.6 feet, averaged across a week of predictions.
A Wavepane on the wall shows that as a picture rather than a table: the water sits where the water sits, and the wave on top grows or flattens with the swell outside. It wakes every half hour, redraws, and goes back to sleep. Nothing to open, nothing to check.
Other coasts
Bar Harbor · Portland · Provincetown · Newport · Atlantic City · Savannah · all of them
Somewhere else? The demo draws any coast in the world.