What is the largest bay in the world by surface area?
Covering over 839,000 square miles in the northeastern Indian Ocean, the Bay of Bengal is the largest bay on Earth. The bay is about 1,000 miles wide, with a maximum depth of over 15,000 feet. About a half-dozen major rivers run into the bay, including the Ganges and Brahmaputra from the north, and the Mahanadi, Godavari, Krishna and Kaveri from the west.
Source: National Geographic