The ferries go backwards (from the cars' perspective) while they head into the waves, then spin around half-way across the Clyde to go with the waves up to Hunters' Quay and in.
It was even rather exciting getting on and off the ferry. It was a very high tide, with the waves rolling across the front in Dunoon, and the boats and pontoons on and off the ferry were shifting a great deal as you drove on and off. Front wheels ashore and aft wheels aboard was very interesting for the moment it happened. It makes it all seem much less routine than usual! Between that and a black-icy commute to Bute earlier this week, this part of Scotland has some excitement to normal living that one doesn't get down south or in the big city.
And the freeing ports (the little holes in the gunwhales and strakes on the ferries) nicely let the Clyde back out of the ship to where it belongs. Glad to see they still work.