Welcome to Germany! Yes, you can consider SArenal part of Germany. Most of its visitors come from Germany. Youll find signs in German everywhere. Dont waste your time trying to pronounce your first Spanish words here: many waiters dont even understand Spanish. Theres a nice beach not far from here, yes SArenal Beach. The Arenal typical tourist will find plenty of what hes looking for: sun and beer (some will even be fortunate enough to find some sex).
If you prefer English people you should go to Magaluf, where its even more difficult to find a local citizen. In Summer Magalluf becomes the biggest open air disco in Europe. Its crazyness!