In this 200th episode of omega tau we cover a topic that has been on our list for a long time: harbour tugs. We start out with a conversation with Lex van der Schaaf, the COO of Port Towage Amsterdam, who gives us a general introduction to port towage. Markus then joins Arno, Jan and Andrey on their tug Thetis for a day of towing in the port of Amsterdam. In the last conversation, Markus speaks with Baldo Dielen about the design of modern tugs, using the EDDY tug as a representative example.