Resources and sites in the Westerly Greek Isles

My family and I will be on a catamaran for 7 days, sailing through the
islands of Greece, right after the Paralympics in Athens. I will have
several divers with me, all open water certified, including my daughter,
who cannot exceed 60 feet depth.

We are thinking of heading in a westerly direction as opposed to the
eastern/Turkey/Lesvos direction. Other than that I have no knowledge of
this area and likely diving sites.

Can anyone help me with advice on where we might find some good sites?
We will also need all equipment, since we cannot take anything with us.

BTW, my daughter is the female recurve archer for the US at the Paralympics.

All advice and suggestions are appreciated. Thanks

Ron