Pick a station, read the water.

Two highs, two lows, and the stream between them. Read a tide table, estimate with the rule of twelfths, and know your springs from your neaps.

Four numbers, two highs, two lows. Everything else is fluff.

Estimate the height between high and low with your fingers.

Why the range doubles every two weeks, and what that means for your keel.

Slack water is a moment, not a place. Read the stream before the chart.

Two bulges, one moon, and the sun's quiet pull in between.