The NASA Extreme Environment Mission operations (NEEMO) 21 mission began on 21 July 2016, on the FIU Aquarius Reef Base with an international crew of aquanauts and support team, including ESA aquanauts Matthias Maurer and Herve Stevenin.
More pics at: https://www.flickr.com/photos/40054892@N06/sets/72157671306681626/?view=lg
