The tickets are used by travelers to travel on the Duchess Gambit to the supposed treasure trove of Point Lookout and vice versa. The ferryman drives a hard bargain of 300 - 500 caps per ticket, so usually trips are only one way.
- If you are low on caps, or do not wish to pay the fee for the riverboat ticket and don't mind the Karma loss, you can pickpocket one from Tobar.
- Once Nadine takes control of the Duchess Gambit you do not have to buy a ticket anymore to travel between the Capital Wasteland and Point Lookout. However, a ticket will still be removed from your inventory each time if you are carrying one or more of them.