Sanjay Gandhi/Borivali National Park is just a stone's throw away & a great weekend getaway for Mumbaikars with many good trekking paths. My destination for the day was Kanheri Caves which are a set of 109 caves that were used as Buddhist monasteries. A small stream is a constant companion all along the path sometimes crossing your path under small bridges.
The real trek starts at the cave, in case you are in the mood to see all the 109 caves in the shortest time & are not there for sightseeing. For me, sightseeing wasn't an option.