Pretty sure that's the "Königssee" in Bavaria. You would find it hard to find a place that is more ridden with hotels, overpriced restaurants and cheap souvenir stands with made-in-china kitsch.

... the mountains are nice, though.

If possible: try to get away from the idea that nothing works without you. Be as transparent with your coworkers as you can be. Work is always easier if done with and not against your coworkers.

It's also not "slacking off" if you have a chat with your colleagues about TV or some shit (on the clock of course).