Besides Ozora festival , an other “big” trance festival takes places in Europe , “the Fullmoon”. This year the festival will take place at 21-28 of July. You can read more about the line up and the location in case you wanna go there this year. The official site of the festival is http://www.fullmoon-festival.com/ .
ps: The festival is not recommended by me but rather many people asked me to announce it here.