Full moon kiting at Lizard hey?
Thought about many many times - I'd love to do it!
The great thing with being out over a reef lagoon on the full moon night is that there is so much reflected light coming off the white sand, that (provided there is no cloud cover), you can see really well. We have done many night snorkels and night dives on the reef during the full moon and you don't even really need a torch to see fish and coral. Plus there is often insane bioluminescence in the water up there at that time of year....just imagine glowing green sprays coming off the board!

From a safety perspective, there are a few more things to think about, a bit like night diving. Low light means its going to be harder to see - on all counts. So harder to see other riders, harder to see your kite and bridles, harder to see your board if you lose it.
And most important of all - harder for rescuers to see you in the water if you are in trouble!
Ideally, you would have boat support. I guess you guys will not have that, so my plan of attack would be:
1. Advise the research station what you are doing, and be able to contact them via mobile or VHF if you have a rider down and drifting off into deep water. That is the nearest boat that could do a pickup, and it would be good to let them know so they don't freak out if they see light sticks dancing over the water after dark!
2. Put cyalumes light sticks on your kite, your board, and ideally wear a helmet with a cyalume gaffa taped onto the top.
3. Kite only upwind of the shoreline adjacent to Mangrove beach and 1-tree coconut, so that if you have a problem you will drift back onto the island and not out into the shipping channel.
4. carry a small but powerful waterproof torch that you could use for signalling.
5. triple check all your gear before heading out.
The tides are going to be very high just after dark on those full moon nights in September, so the lagoon is going to be pretty choppy and if the wind is on, you will have 2-3 knots of current belting downwind. You also won't have much beach to work with for launching and landing.
Would be a totally insane experience to add to your list though, very much worth doing if everything lined up right. You've got me thinking now..........