Go With the Flow
In the Seattle/Puget Sound area, the tide can vary beyond 13ft from low to high, and in some of the narrower passages, that can mean some serious current. I've had the "pedal to the metal" and indicated 6 knts on the knotmeter, and actually been moving backward per the GPS (and my eyeballs). Can be scary at times. It can really pay to have, and know how to use your current tables (Go with the flow!)The tide itself makes a big difference in where you choose to anchor - or navigate. Most folks who spend any time in these waters have stories of seeing the occasional "Bayliner" (OK, it's a stereotype) high and dry on some rock that must have been a couple of feet under water when the tide was high. We also are aware of the large areas of mud flats that get covered by only a few feet of water, and expose daily with the tide fluxuation.Both make for some embarassing pictures.