In addition to your dive insurance paperwork, identification cards and passports, you need to pack appropriate clothes matching your dive site. There are some tropical islands having cooler nights, so consider packing extra clothes to withstand such temperature. You may also have to dive on hot days under the sun and be mindful of that as well. Don't forget to pack your sunscreen and shades. Packing a small first-aid kit would be a wise decision in case of an emergency. It can contain bandages, medications and anything else you might think you need. It is recommended to take spare parts with you, such as a spare mouthpiece, mask strap and tools. A few hours before you finalise packing, make sure you have freshly charged batteries for everything that require batteries.