登巴萨地图上的水路交通路线 ASDP Padangbai - Sampalan (Nusa Penida)

There are 2 Roro ferries to/from Nusa Penida (Sampalan) from Padangbai per day.

Payment is complicated nowadays (cashless): you need to pay online via transfer (indonesian bank only) or via (indonesian) flashcard (BNI, BRI, Mandiri, ...) The latter you can buy and top up in any Indomaret/Alfamart. An alternative option is to go buy the ticket in the nearest Indomaret/Alfamart and you can pay cash there (at a premium of course). With the payment slip you can enter the port where this paper will be changed to a ticket, with which you can board the ferry. Cashless operation most likely only in Padangbai for the moment.

The ferry to Nusa Penida has a yearly maintenance typically around September-November during which services are interrupted.