A large hole with what appears to be a tiny burrow at the bottom . The two red dots at the upper right are probably 10 cm apart. Thus the hole is at least a meter and probably more across.

Image ID: expl6822, Voyage To Inner Space - Exploring the Seas With NOAA Collect
Location: Caribbean Sea, Mid-Cayman Rise
Photo Date: 2011 August 8
Credit: NOAA Okeanos Explorer Program, Mid-Cayman Rise Expedition 2011

• High Resolution Photo Available