Built around 500 BC, Kalavantin Durg is considered one of the most dangerous forts in the world. The rock-cut staircase snakes up the mountain, ending at the summit, which offer a glorious view of the entire Panvel and Karjat region. Gushing winds and rain add an extra element of adventure, as if more was really needed, making this trek a must-try in the Monsoon. But be warned, this is not for the faint-hearted. This Stairway to Heaven does come with some nice perks, like a delicious village lunch, a splash in a waterfall and what will be the envy of all your friends on FB; a photograph from heaven. Yes it is on a Sunday, and you have to go to work on Monday. But come on, what a Monday it will be!