are some extra information for those interested
by tides, astronomy or navigation.
A Fisheries and Oceans Canada site (Hydrographic
Services), from which one might find daily tides
for a given location within Canada.
A NOAA site that also gives daily tides for a
given location but in this case for United States
list of Lights, Buoys, and Fog Signals
A Fisheries and Oceans Canada site (Coast
Guards), where all the lights and buoys are
listed including their exact position. Generally
updated with latest Notice to Mariners.
National Geospatial-Intelligence Agency (US)
maritime information, including buoys and fog signals
and Moon viewer
A quite interesting site, with real-time
representations of Earth seen from Moon (and
vice-versa). Main site created and hosted by