Lonavala
The Rajmachi Fort trek is one of the most rewarding overnight treks accessible from both Mumbai and Pune — a beautiful 15-km trail through dense Sahyadri jungle leading to twin Maratha forts (Shrivardhan and Manaranjan) with stunning 360-degree views across the Konkan. The base village of Udhewadi offers basic homestay accommodation, and trekking up in the moonlight or just before dawn to catch the sunrise from the battlements is genuinely unforgettable.
The Kondivade to Rajmachi route is shorter and more scenic than the Lonavala route — hire a local guide if this is your first time on the trail.