I hope you have already planned about your future program, incase you are still at planning stage I would suggest your home state is best for spending quality time in this hot weather. take your friends to beauty that Mother Nature offers in your home state. My favorite is nainital where I have visited 100s of times. I never felt as if I was visiting there again despite being there so many number of times. Horses, boats, lovely walk through the hills is some thing out of this world for me.
Alternately
You can come to stay with us in Sydney from next week onwards where the winter is at its peak.
We had Nainital in our mind before but we too have been there a number of times though not any where near to your record of 100. :laugh: Last year we explored Almora and had a wonderful time there really. If you have been to the cave temple called "Patal Bhuvneshwar" in Pithoragarh you would know how much those big mountains there have to make us feel like really awesome!!
Though I might think on the Sydney wala option. ;) We will only come by the next month by the time you will be well settled. :cheer: