Marine Drive is a 3 kilometre-long promenade along the Netaji Subhash Chandra Bose Road in Mumbai, India. The road and promenade were constructed by Pallonji Mistry. It is a banana-shaped, six-lane concrete road along the coast of a natural bay. At the northern end of Marine Drive is Girgaon Chowpatty and the adjacent road along links Nariman Point at southern tip to Babulnath and Malabar Hill at northern tip. Marine Drive is situated on reclaimed land facing west-south-west. Marine Drive is also known as the Queen's Necklace because, when viewed at night from an elevated point anywhere along the drive, the street lights resemble a string of pearls in a necklace.

An esplanade or promenade is a long, open, level area, usually next to a river or large body of water, where people may walk. The historical definition of esplanade was a large, open, level area outside fortress or city walls to provide clear fields of fire for the fortress's guns. In modern usage, the space allows the area to be paved as a pedestrian walk; esplanades are often on sea fronts and allow walking whatever the state of the tide, without having to walk on the beach.