In the morning, head to Sanjay Gandhi National Park and take a nature walk to enjoy the lush greenery and waterfalls. In the afternoon, visit the Kanheri Caves, a group of rock-cut monuments with Buddhist sculptures and ancient inscriptions. Spend the evening boating on the lake or picnicking in the park.
Take a morning ferry to Elephanta Caves, a UNESCO World Heritage Site with ancient Hindu and Buddhist rock-cut temples and sculptures. In the afternoon, visit the Chhatrapati Shivaji Terminus, a historic railway station known for its Victorian Gothic architecture and bustling atmosphere. Spend the evening at Marine Drive, a scenic promenade overlooking the Arabian Sea.
You should also consider visiting the Gateway of India, a historic monument and popular tourist spot. For a side trip, head to Alibaug, a coastal town with beautiful beaches and forts. To maximize your fun, try the local street food and go shopping at Colaba Causeway or Crawford Market. Don't forget to check out the nightlife at clubs like Tryst or Hype. Finally, make sure to book your stay and flight using this link to get the best deals.