Post via Twitter from James Bullar MBE, Head of Nautical Studies at London Nautical School currently aboard Blue Mermaid:

Thank you Chris Livett for financially supporting this Thames Barge trip. Students are working hard on their passage planning for the night navigation exercise. This is a superb way for 16-18 year olds to experience working the tides, including at night. See all James’s Tweets here.

They also learnt about eating oysters whilst visiting West Mersea. Photos