Our ferry ride to Swartz Bay was on one of BC Ferries larger boats. There were multiple decks to explore and a great view to watch passing by once we got in amongst the Gulf Islands. We also saw a few other ferries as we went. The ferry running the opposite service to ours passed us by as we made our way through one of the narrow passages between the islands. While not identical, it was a similar size to our boat.
The smaller islands also have service. Since they are not generating anything like the traffic that Vancouver to Victoria generates, the ferries are a lot smaller. We saw some docked up as we passed while others were making their own crossings. The waterways were pretty busy with ferry traffic for a November weekday. I wonder how many were tourists like us and how many were people going about their normal business.