Start your day by visiting the landmark location of Mumbai, the Gateway of India. It is a beautiful and historical monument that was built to commemorate the landing of King George V and Queen Mary in 1911. Take a boat ride to the Elephanta caves that takes about 1 hour from the Gateway.
Elephanta caves are a long rock-cut cave system filled with beautiful sculptures and artwork. It is a UNESCO World Heritage Site, and is definitely worth the visit with its calm and peaceful environment. The caves are only reachable by ferry from the Gateway of India.
After a good touring session, head over to Colaba Causeway and try some delicious street food. The street shopping of Colaba is worth the visit, filled with amazing finds starting from clothes to antiques.
Marine Drive is a beautiful place to visit during sunset. It is a 3.6km long street that overlooks the Arabian Sea, and is usually filled with people watching the sun go down. Go for a walk or sit and enjoy the sea breeze while conversing with your other half.
End your day with a visit to Bandstand promenade, this location offers a beautiful view of the Bandra-Worli Sea Link. Couples usually visit Bandstand for long walks, calming breeze, and enjoying the view. You can also check out nearby cafes and restaurant for dinner.
If you have more time, you can visit other locations like Sanjay Gandhi National Park, Siddhivinayak Temple, and Haji Ali Dargah. If you have less time, you can skip places like Colaba Causeway and Bandstand Promenade. Do try cheap and delicious street food located all around Mumbai.