Just back from diving in South Sulawesi over the christmas break. So some thoughts.
I don't need a wetsuit at that water temp, I just use a dive skin. If you feel the cold then maybe a 3 mm shorty would be enough. But you need a rash guard, full body include socks and take some antihistamine cream or something to stop the itch of bites/stings.
I don't use gloves but many there do, personally I think a pointer is enough to steady yourself against some dead coral or sand.
You need to have a tank banger or equivalent to make noise underwater. Even though I told the group I am slow as I am taking pictures I would look up and they would be disapearing into the distance. If you have a buddy then you are in a better position.
You need a safety sausage at minimum, the bigger the better, it is very easy to be seperated from the group and to come up on your own. Currents can be strong and it is easy to be 1/2 a mile apart. I don't see any reason to shoot from depth so no need for a reel as the prupose is to help the boat find you.
Diving can be very deep and the rules on experience can be elastic. A young german couple with 12 dives each were in a group that went below 40 metres (130 ft), they should have thumbed at 18 but just shows what a lack of experience can do. Oh yes and he was an air hog so was buddy breathing before the safety stop.
Electrical, take an extender with 4 sockets, that way you only need one adapter and one outlet to allow you to charge everything. Power can be erratic so one with a surge protector is a good idea. Indonesia is European plugs and 220 Volts but our resort had installed multi plugs so you could use UK or US, this is not common. Make sure everything is OK with 220 volts, If the wife is going then hair dryer, straightners, etc normally not good.
I do a days diving on a memory card and set of batteries, thus only have to open the housing back in the safety of my room. I take a card for every dive day and backup to a PC. Two camera batteries and 2 sets of batteries for the flash.
Weight for flying. Internal flights can be fussy so careful packing and a suitcase weighing machine are worth the effort. I pack my dive gear in the bottom of my suitcase (I do NOT recommend a dive bag, don't advertise valuable contents) but a battered hard shell case is perfect with an easily recognised mark. Spotted on staff flight case was a painted mobile phone number (not a bad idea).
If you are going to have a speedboat transfer assume that bags are going to get wet. No expensive leather, etc.
Well back to work.
