Karennina,You were asking about a trip for August.At that time they will be using the Catamaran only,unless they have a seriously low booking number.The minimum number for passengers is 30,on the hydrofoil, but this is out of season. The hydrofoil is running now ,but only on fridays and will continue through the winter.Travel time on the cat is two hours in each direction and is not likely to be affected by weather due to its size.It should be running three days a week next season and you have to be at the dock by 8am.Return from Rhodes is 4.30 pm,be at the dock by 4pm.good luck j