If you bring kids there, you may go to Malawati Mountain to see and feed monkeys, and watch fireflies nearby. But note that the place to watch fireflies are quite hot.
You may also go to visit Elephant Sanitary where I’ve not been there before.
There are few more interesting places like, Bird Park (not been there), Aquarium, Theme Park at Berjaya Times Square (not as good as I think), Genting Highland.