These tickets let you travel by train conveniently and more cheaply over a specific route.
CP Services: Lisbon urban trains
These tickets are loaded onto a Navegante Ocasional card that is only valid for one person. The reusable "Navegante Ocasional" card costs €0.50 plus the price of the tickets and is valid for a year.
The ticket must be validated before you board your train. Whenever to make a journey, you have to validate the ticket. The journey will be valid from the date and time of this validation.
Keep the receipt until you have used all the tickets.