What parts of the Sewol ferry did Crabster inspect? Were there any areas that Crabster had to avoid because of dangerous conditions or other factors?

Crabster was deployed 70 meters away from Sewol. Crabster could see the contour of bow master and upper cabin of Sewol. We wanted to go more close to Sewol but we could not have permission due to the safety of divers. We were very cautious so that Crabster’s tether cable was not entangled to the anchor line of barge. If we could attach our ship to the large barge, we would get more information about Sewol and her surroundings.