Sorry cannot give you an answer without the ship's name. Nei.
Sorry, it's the OV.
Its 3 pin plug onboard Ocean Villag.
OV2 was built for the american market unlike OV(1) therefore although the voltage is 110 and 220 I think that american style adaptors will be necessary. I have said this before but it's worth saying again I always carry a pack of adaptors cover british into european and american, it doesn't take up much room and covers most eventualities. If you are going to cruise on other ships and possibly stay in a hotel prior or after cruising you have to cover for that as well and a pack does just that. Hope that's helpful .... Nei.