Spend the early morning hours exploring Raigad Fort, the historic Maratha capital with panoramic views and monsoon greenery. The fort is open till 5 PM.
View the mighty Janjira Fort from Murud Beach; boat tours to the fort may be unavailable during heavy monsoon, so enjoy the fort's majestic presence from the coast.
Take the public ferry from Gateway of India to Elephanta Island, exploring UNESCO-listed rock-cut caves (open 9 AM - 5 PM, ferry services till sunset).