There is a list of links which can help you plan your trip in the best way.

Greek National Tourism Organization :    www.gnto.gr

Sailing Holiday Greece:   www.sailingissues.com/greek.html

Forecasting and information for Greek seas :   www.poseidon.hcmr.gr

Weather Forcast  :  www.meteo.gr

Athens International Airport:  www.aia.gr