Sylk said..
Try hanging a glow stick each side of your kite different color left and right. helps you see where it is and which way its pointing.
definitely a +1 for the different colour lights on each wing tip.
we kited with 5 people at the same time on a stretch of ocean that was shallow. Very cool jumping at night, such a buzz even if you dont go high haha
Its great to try it if you know where your kite is at without looking at it, and at a place where you feel comfortable though, and make sure you dont go with too many people, getting tangled (minimised visibility) is not something you wanna experience at night in the ocean me thinks

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Also, we had a strip of battery operated chrissy lights on the beach when we did it, just so you have a good idea about staying up wind etc ( where we were was an island in the middle of a gulf so no city lights available, and as it was a small island we didnt wanna go past a certain point), but doing it when there is a full moon is handy too.
either way have fun! I loved it, was a great experience


for some shots of our night kite experience (with long shutter times so you can actually see us kite) check out
www.flickr.com/photos/mwindley/sets/72157638742939613/ my mate maurice windley is an awesome photographer

elise