Basic Info: Shivneri fort holds great historical importance as this was the birth place of Shivaji Maharaj. This fort is ideal for a one day trip and requires moderate trekking experience.
There are 7 doors which one needs to cross to get to the top of the fort. There is lot to be explored at Shivneri and is ideal for people who love historical places.

How to reach: Shivneri is located at a distance of around 100kms from Central Pune. One has to head towards Junnar village from Pune. 
If you have your own vehicle, you can drive till the foothils of the fort where your vehicles can be parked.
Folks travelling by public transport will need to walk for about 2 kms from Junnar to get to the base fo the fort.

What to see at Shivneri: There is plenty of sightseeing that can be done on the fort.

• Shivai Temple - Temple of goddess Shivai after whom Shivaji Maharaj was named.
• Kadelot - Kadelot is a point on the fort from where criminals were thrown off the fort as a punishment. 
• Ambarkhana - This was used as a food storage. It was not just a small storage area, but a pretty large storage where grains could be stored for more than a year.
• Ganga and Jamuna - Water Springs on the fort
• Statue of Jijabai and Shivaji Maharaj 
• Badami Talav - A huge water reservoir on the fort.
• 7 Doors of the fort

Accomodation and Food: I'm not sure if camping is allowed on the fort as during our last visit we jsut went for a one day trek.
But, there are plenty of caves on the fort that can be used as a shelter at night. If you have your own tents, nothing like it. You can check out trekking equipment page where you can get some really good tents in India.
Ensure that you carry packed food as there are no good restaurants in this area. Carry plenty of water and food before you head out for trekking.

History of this fort: This place is the birth place of Shivaji Raje Bhosale. He was born here on 19th February 1630 and spent most of his childhood days on the fort.
Shivneri being a strong fort was chosen by his father as his birth place. There are 7 doors for this fort and during the old days getting past these was a tough job.