What a great course on my last days in Thailand. Thanks Chriso to teach Alex and me ´deep speciality instructor´. Now we take care of students who want to go down to 40 meter. Keithy my ex open water and advanced student straight in the middle completed his deep speciality course. Well done boys..2 absolute unreal last dives on Sail Rock - epic! The boss in the back Jay & Westy thanks for everything, it was a plesure to work for you boys!