Those fliers would be available at the TT, Poison Apple and around town. The back of it read:

Music, sun, belly dancers and hookahs.
What more could you want?

The Poison Apple and the Titty Twister invite you to their Arabian Nights themed rave! Come join us on the 8th of July starting at 1 pm ((SLT)) and until none of us are left standing! We will be waiting for you at the beach behind the police station ((the one in D8)) in your best Arabian Nights themed outfits!

((For any question, IM Laleeta Xue in world))