Translation of buzzer in Spanish

I would like to give you a proofreader's project. Proof reading sample sentences that were entered into the dictionary by our users. It is a very tough project and needs a lot of discipline and patience.
On the frozen lake, you can skate, but I would never dare it because it is far too dangerous. Who knows how thick the ice really is and how accurate the measurements are. It can break.
Thank you once again, it was very nice and it would be great if it works. Here are the few restaurants with a link, all are a little more expensive, but worth it. Warning: some links have the same name!