These are the ferries that take you, from Mazalan, across the Sea of Cortez to La Pas which is around 40 miles from Cabo. It's an 18 hour ferry trip. They have a restaurant and bar on board and rooms. It's about 99 % local mexicans on board, so don't look for any conversation unless you can speak spanish. At night the isles are covered with the locals sleeping. Quite a site.
If you look back around 40 posts for (copper canyon train ride part two) you will see a picture of us backing onto the ferry. Very tight.