Navy tugs at work

Canada's navy tugs are crewed by civilians, and operated by the Queen's Harbour Master. As Canadian Navy (Forces?) Auxiliary Vessels they are dedicated to navy work. This morning they were at work moving HMCS St.John's  from HMC Dockyard to pier 21.
Granville was in the lead with a tow line:

Next was Listerville under the bridge with a bow line:

Proving the power from the stern is Glenbrook:

Bringing up the rear was Merrickville with two Yokohama type fenders. While the other tugs turned the ship, the fenders were installed on the pier face:

Later in the morning other Dockyard small craft placed a containment boom around the ship.
Meanwhile the tug Glenside was inbound towing HMCS Shawinigan from refit in Shelburne, NS.