Start your day at the iconic Gateway of India, the city's most recognized monument that was built in 1924 to commemorate the visit of King George V and Queen Mary to Mumbai. Take a boat ride to Elephanta Caves, which is a UNESCO World Heritage Site and marvel at the stunning rock-cut sculptures.
Head to Colaba Causeway Market, a popular shopping destination that offers everything from clothes to jewelry to souvenirs. You can also find a variety of street food stalls to grab a quick bite.
Chhatrapati Shivaji Terminus or Victoria Terminus is a historic railway station and a UNESCO World Heritage Site. Take a walk around the station and admire its Gothic Revival architecture.
Take a leisurely stroll along Marine Drive, also known as the "Queen's Necklace" due to the street lights that resemble a necklace at night. Enjoy the stunning views of the Arabian Sea and the city skyline.
End your day at the Bandra-Worli Sea Link, a cable-stayed bridge that connects Bandra to Worli. Take a walk on the bridge and enjoy the stunning views of the sea and the city skyline.
Don't miss visiting the Chhatrapati Shivaji Maharaj Vastu Sangrahalaya, formerly known as the Prince of Wales Museum, which houses a collection of ancient Indus Valley artifacts, sculptures, and paintings. If you have time, take a ferry ride to the nearby Elephanta Island and explore the Elephanta Caves. If you're interested in Bollywood, take a tour of Film City in Goregaon. For foodies, try some of the local street food, such as vada pav, pav bhaji, and bhel puri.