XTide is a package that provides tide and current predictions in a wide variety of formats. Graphs, text listings, and calendars can be generated, or a tide clock can be provided on your desktop.

This package provides _extra_ harmonic station data for the xtide package. XTide works fine without them using the (free) xtide-data package which provides harmonics data for the US, but this package adds non-free data for Canada, the Netherlands, Germany and the UK.

This package is non-free because commercial distribution of the data is not allowed.