Why is it called Offshore Vessels and difference with Onshore Vessels?

Offshore vessels are maritime vessels designed exclusively for carrying out operational tasks, including oil exploration and construction activities in deep waters.


http://dlvr.it/T1kCp7
at

Sevilla Harbour: 9 Exciting Activities Should Be on Your Bucket List

The Sevilla Harbour, situated in the city of Seville, Spain, is a river port located on the lower section of the Guadalquivir River. It hold...