This page links to data from US states and territories Tide Stations to provide data regarding tides in that port. These links go to that stations homepage in turn and additional information can be viewed. Tidal predictions for over 3,000 sites.
This page allows learner to predict tides and currents in various locations around the world. Has links to maps that can be viewed as satellite image, terrain map or hybrid. Predictions can be checked through real time data link.
This page is a gateway to software and sites connected to tides and tide predictions. Provides links to educational resources.
This page is regarding the history of tide predicting machines with detailed descriptions and formulas. Page is a gateway to additional resources.