Tide Clock for your computer desktop!

http://gadgets.brucebracken.com/tideclock/

This tidal clock gadget for Windows Vista Sidebar tracks semi-diurnal tides (two high tides and two low tides per day) and counts down the hours to each high and low tide.

Excellent for fishermen, surfers, beachcombers, clam diggers, divers, seaside property owners, and any other tide enthusiast!