Total Tide is the world's most comprehensive prediction program providing fast accurate tidal height and tidal stream predictions.
Use this option to add/renew Total Tide to your current ADP permit. You will need your current ADP startup key, this is in the form of
xxxxx-xxxxx-xxxxx-xxxxx-xxxxx-xxxxx (30 characters plus dash)
Note: If choosing to add the option to your existing ADP licence then the option will be active until your current licence expires. The cost is discounted based on the duration of licence remaining