Blue Adventures Diving
PADI Five Star centre with a base in Chania Old Harbor and another at Marathi on Akrotiri. Its fast RHIB boat dives go to Elephant Cave, Seal Cave, Cathedral Cave, Spotlights Caverns, Maherida, a six-cave group and The Wall at Kalathas; Open Water level or higher is required, and beginners and PADI courses are offered.