Attach lines to kite on the beach, wind them up most of the way and FOLD wingtips to center, do not roll up the kite, your lines will be rolling also and get tangled. Inflate kite on bow of boat, have kiter swim into launch position while unwinding lines and launch it. You can also drift launch.
Check out the association site for upcoming June 28 cookout/safety day info. You can meet lots of kiters there and volunteer instructors will be teaching self rescue techniques and more.
www.tbka.org