Now on the last day of the expedition, we've rounded the eastern side of Bright Bank. We've been maneuvering with Carolyn as they are towing ARGUS along a survey line stretching around the island. 

Exciting news! Last night on the transit from Rankin Bank to Bright Bank, we found what appears to be a paleoshoreline -- the remains of an earlier seashore that existed when the sea level was lower than it is today. 

On Wednesday, we had a visit on the Carolyn Chouest by Emma Hickerson and Rachel Graham who are conducting their research on another boat, the M/V Spree. Between live broadcasts, I had a chance to ask Rachel about the progress of her work on manta rays. Rachel and another researcher, Dan Castellanos, are interested in finding out how and why mantas move from place to place. 

We passed through a narrow valley in the middle of Rankin Bank and spent some time side scanning the flats on the eastern side of the bank. The good news is that water visibility has improved a great deal, allowing us to get the ship in close and look at individual features. 

I just uploaded some cool underwater photos of the mud volcanoes we explored yesterday and of some of the sea life we found nearby.

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