57.
Cruisy mall
Larcomar is a very nice mall at the cliff border, with a noce view of the Lima Bay. There are lots of restaurants, and one will usually meet some gay crowd, speacially at night. It is pretty safe and be sure to take only official taxis everywhere.
Motel
I cannot think anyone staying there for more than 3 hours. It's shabby and usually not very clean. It is cheap though, just to zake the guy you just met.