I only saw Safari Zone Gate instead of Safari Zone.
Okay so if you were going to make it now, here are the Pokemon that appear:
Rattata Lv 15-17 (Morning, Day)
Abra Lv 15-17 (Morning, Day, Night)
Girafarig Lv 15-17 (Morning, Day, Night)
Smeargle Lv 17 (Morning, Day)
Raticate Lv 15-17 (Night)
Stantler Lv17 (Night)
I'll edit when I find more Pokemon that appear. Plus this is for Pokemon HG/SS.