This charter operator is located on the following address Narkissou 45 Psychico, Athens. They have one base from which the operate: Pireas. Their offering is Hanse 588 (Owner's Version).
Check-in is usually on Saturday from 18:00, and return of the boat is on Friday till 16:00. Check-out is on Saturday till 10:00 in the morning. If you charter before 31.01. they have Early booking discounts which can significantly reduce the price of yachts.
First payment for your charter is in amount of 50% of total price. Second part of payment is done no later than 45 days before charter period. For additional equipment and services you can pay in cash or with credit card.
Callisto Yachting is highly recommended by clients.