There are many places to visit in Lahore where you can hang out with friends for fun and amusement. But as you have mentioned that you are tired of going to Fortress and other such places, I would suggest you to visit Race Course Park Lahore, besides this if you can afford to go in the surroundings of Lahore then you should visit Changa Manga.
If you are looking for real adventure with friends and family I would sincerely suggest you to visit X Park Lahore where you can enjoy Go Kart rides & Adventure Wall Climbing and much more. You can get upto 37% discount by availing deal from Groupin.pk.
For more details visit,
Groupin.pk