Navigation is the science of establishing your position and managing your yacht's progress with a minimum of risk and a maximum of enjoyment. Coastal Navigation's visual layout, full of graphs, charts and diagrams, covers chartwork, aids to navigation, tidal heights, tidal currents, estimating your position, electronic navigation aids, poor visibility and many other topics.
Posted by Anastasia J G
wtffff i do not understand this!
Posted by Cristian
so many fake sites. this is the first one which worked! Many thanks
Posted by John Macciva
lol it did not even take me 5 minutes at all! XD