It is very beneficial to arrive a day or two before your cruise embarks, especially when traveling from US to Europe. We were relaxed and refreshed to start the cruise and arrived early enough to the ship (around noon) to enjoy meeting other passengers.
Be prepared to walk a lot if you go the excursions.
Spring travelers should bring some allergy medicine. In addition, some members (4 of them) in our group were sick, one of them went to emergency went he arrived Basel.
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