It is my second time in Berlin in less than a year. The first time, I stayed in the gay district (around Nollendorf Platz). Nothing exceptional in my opinion, except of course the 3 boys bars. I was a bit disappointed since the majority of the boys were from Romania and not really my type. I managed to find one however, from Latvia, and had great time with him during the first stay.
During my second stay, I only spent one nite close to Nollendorf Platz and spent most of the stay close to Lab.oratory. Someone posted the link to the site. I heard that it was a big cruising place and indeed it was. The first night, which was a 241 (2 drinks for the price of 1). May be 150 men, boys, twinks were there, drinking, fucking, having fun. It is rather hot inside the backrooms and so the patio outside was very much welcome. Fucking under the full moon ... For me, it is certainly the hottest and cruisest place I went to. And there are all types, young, old, passive, active, gay, bi, daddies, twinks, .. If you do not find someone you like and who likes you there, it is very likely that you will find him nowhere ..
I am pretty sure that the naked night is even hotter. If you plan to go there, do check their website as there are some dress rules some days and they are really strict in the application of the rule.
I stayed in an hotel which is within a walking distance to the place. A bit scary in the night since there is a kind of no man s land between lab.oratory and the street. But no problem.
There is also in the middle of Tiergarten a place where you go can and have fun, particularly between 8 pm and 2 am, it is close to the lion's bridge inside the park and also close to the table tenis field... (in fact on top of the table tennis).. Enjoy your time in berlin /