Hi yes the 15% is added to the bar bill, and cannot give you the right answer for sea sickness,but if your state room is center ship your less likely to feel any movement than if your nearer the front or rear,and it would depend on the seas when your sailing we always take travel sick pill with us but only needed them twice in about 15 cruises so hope it helped?
Sorry but I think you need to look at the other posts and get in touch with your travel agent - Liberty is not doing the Baltic trip next summer as Carnival have withdrawn their 2009 European itinerary.
I meant to say Northern European..
Royal Caribbean - Independence of the Seas - 28 Apr 17 - 3nts
Southampton : Bruges (Zeebrugges) : Paris (Le Havre) : Southampton
Now from £399pp - Promenade View
View All Cheap Royal Caribbean Cruises from Southampton >>
Click here to see offer
Royal Caribbean - Vision of the Seas - 23, 30 Jan 17 06, 13, 20, 27 Feb, 06, 13, 20, 27 Mar 17 - 7nts
Dubai : Khasab : Muscat (Oman - Overnight) : Abu Dhabi : Dubai (Overnight)
Now from £749pp
View All Royal Caribbean Dubai & Abu Dhabi Cruises >>
Royal Caribbean - Independence of the Seas - 14 Oct 17 - 7nts
Southampton : Gijon : Bilbao : Cherbourg : Paris (Le Havre) : Southampton
Now from £755pp
View All Cheap Royal Caribbean No Fly Cruises >>