Not intentionally, and it is not actually a prison, but the lower levels of Rikers Island (the primary jail of NYC) do flood when the East River rises.
An underwater camera, is a camera that works underwater.
Underwater landslides, Underwater volcanic eruptions, and Underwater earthquakes
underwater
Yes. Underwater can be used as an adjective and an adverb. adjective: underwater expedition adverb: swim underwater
14 underwater Webkinz and 5 underwater Lil'kinz =
Plumbing underwater
because they are
An underwater technician would be a person who was capable of fixing things underwater.
To do the underwater challenge in Peru, YOU HOLD YOUR BREATH UNDERWATER DUMMIES
Maritime archaeologists are archaeologists who specialize in studying underwater cultural heritage sites, shipwrecks, submerged landscapes, and other underwater artifacts. They use specialized techniques and equipment to investigate and preserve these submerged sites.
A car that you can drive underwater
Underwater Cameras