Visible at the Dock's north end is the Venus Djinni Ground, but it is inaccessible upon your first visit here. The mudslide that prevents you from getting the Venus Djinn also blocks the beginning of Silk Road, which is why the tourists to Colosso must take the ferry service instead of walking around the Sea over land. In order to get the tour group to come to the Kalay Docks, you must talk to the guy with the backpack in the Kalay inn, then leave town to trigger a cutscene. Next, go to the Docks and buy a ticket. After getting on the boat, the tour group should appear on the ship.