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.
Stage 1: Learn the correct pronunciation of the language. Time: 1-2 weeks (or longer for languages that have a new alphabet that will take some time to get comfortable with).his is the method I've used to learn four languages (Italian, German, French and now Russian); it's the method that got me to C1 fluency in French in about 5 months, and I'm currently using it with Russian (and plan on reaching C1 equivalent fluency by September). I go in four stages.