We have been on the Jewel to the Scandinavian Capitals, St. Petersburg,Russia and Tallin, Estonia and we had rough sea at several days in may 2004. The passage between Norway and Denmark could be quite rough and even the more protected area between Sweden and Denmark was rough, so the Captain changed the course a little bit. We were not allowed to go outside, the deckchairs were flying around and the specialty buffet outside was cancelled. No I know, that I have to take the pills, you get a the front desk, as early as possible to avoid seasickness.
But the seas around this areas could also be very calm and enjoyable.
And, we loved the cruise and the ports of call, and we loved the Jewel ots.