Let's dive in the caves !
There are many opportunities of nice dives in the North of Corfu. The water is super clear and the divemasters will guide you through the caves or the wrecks. You will enjoy a nice and warm water during all summer but in September and October after having been wamed up during all summer there is no thermocline and the temperature remains warm as deep as you can dive ! The diving center in Acharavi, Dive Easy - http://www.diveeasygr.com/ - has a very good equipment and will take good care of you and your safety.