Bettany Hughes and Lucy Blue are joined by explorer Bob Ballard as they journey beneath the waves. They find out how sonar and remote vehicles have been used to discover shipwrecks such as the Titanic and the potential for many more sites yet to be discovered

 

#titanic #maritimehistory #history #marinearchaelogy #diving #scuba #bettanyhughes #honorfrost #bobballard #philippecousteau #underwaterhistory #nautical