June to August in Europe is known as High Season (which means you can expect wonderful summer weather but the downside is quite a few crowds). Any destination in Europe will be a great destination during high season.
If you really put your mind to it, and constantly expose yourself to a language then you may find that you can speak it with relative ease within about 6 months, although as mentioned before, you would really need to be living in a country that speaks that language in order to get to this stage.
From Wikipedia, the free encyclopedia. A language school is a school where one studies a foreign language. Classes at a language school are usually geared towards, for example, communicative competence in a foreign language. Language learning in such schools typically supplements formal education or existing knowledge of a foreign language. Students vary widely by age, educational background, work experience.