After visiting the "Pfaueninsel", we walked along the beautiful Nikolskoer Weg, took a quick bath in the "Havel" along the way before stopping in the "Blockhaus". An amazing view from above there. They were open on a Monday and 6 of us were served by a very friendly waiter. He was charming and funny and very efficient. We particularly welcomed this after having had a few very bad German restaurant experiences. The food was served nicely. Everything arrived at the same time and warm. Food was evidently freshly cooked and prepared. We ordered nothing fancy, but everything we had was super. A very happy lunch experience with spectacular views from above. I bought some home-made honey on my way out. Nice. Definitely recommended!