May I suggest you look here
Cruisingforsex.com is a website that reports the hot spots and also tries to report when police activity has increased and the spot has become unsafe legally or when it has become unsafe for other reasons like bashings etc.
The site has been around for along time and it has many many faithful members who keep it updated and accurate.
LATE EDIT: Their website has become ungodly cluttered over the past few years as they try to find sponsors and money to keep it running. Here's how to avoid all that.
Once you get past the entry screen, in the left hand column click on READ and then SEX LISTINGS. Choose your locale by any of the means listed in the menu, and then your desired cruising destination (baths or sex clubs; public places; XXX arcades, theaters). When you get to the next page scroll down to the listings and click on Show all listings to see all the listings for that city in your chosen destinations.
Hope this helps, but as always, cruise at your own risk. Remember what happened to George Michael.