Since Malavli is 140kms away from Pune you could see if the following shared is useful for your travel. You could start with Narayani dham temple
Explore Lohagad fort
Watch the calm pavana lake
Cave into Bhaja
Ekvira Devi temple is 10kms away Malavli
There is a wax museum 12kms away Besides the above you could paraglide in Kamshet, do a balloon safari, visit water N joy water park.