TRAVEL ESSENTIALS: Passport, Visa, Flight Tickets, Scuba Certification Card, Travel/Diving Insurance, Currency, Debit and Credit Card, Mobile or Cell Phone. If you have the items on this first short list, and should you forget anything else, you can always buy it or rent it when you get there!
SCUBA EQUIPMENT: Light Weight Travel BCD, Regulator, Octopus (Alternative Air Source), Pressure Gauge, Depth Gauge, Mask, Fins, Snorkel, Booties, Dive Computer, Wetsuit or Dry Suit, Gloves, Swimwear Or Dry Suit Under-suit, Surface Marker Buoy, Underwater Torch or Flash Light, Light Weight Dive Bag, Spare Mask and Fins Straps.
CLOTHING: Clothing of your choice and other travel items. These are all explained in this article below.