As kiteboarding and kitesurfing fanatic myself I can't help but promote my mate's kiteboarding school which he opened in Lithuania.
I met Bruno in Tarifa, Spain in 2010 where he spent half a year improving his kiteboarding and kitesurfing skills. I met his entire family as well - lovely wife and 2 cute daughters...:)
Recently Bruno passed IKO Level 2 exams and become the first Lithuanian who can teach kiteboarding kids. This summer he is going to run kitesurfing camp for kids.
So if you are in Lithuania and want to learn kitesurfing/kiteboarding or improve your skills - visit his website Kaitai. I can assure, you will be safe with him because as an extra safety he provides accident insurance during the courses. The only kiteboarding instructor in Lithuania who does that!