I realize to people up north the colder weather we experience down here in Florida is quite comical but relatively speaking, how is traveling on a cruise in Jan/Feb different than in the summer months? I'm booked on two 3 day cruises for the month of January and am wondering what to expect. Are the seas rougher? If so, how bad? Are you spending less time outdoors? I'm an explore the ship, spa, spend time in the room kinda person so I don't think it will matter to me but I'm concerned for the people I travel with.