I work out everyday when I cruise. It’s difficult to get in a workout longer than an hour. The gym doesn’t open until 6 am and by 7 am it is packed. People are waiting for the ellipticals and treadmills. Another problem is the bags. I’ve only seen them on 2 ships. Don’t count on them being there. When you go on a shore excursion, they pre assemble you in a staging area at least 30 minutes before the excursion start time. Most times excursions that begin at 9 am will stage at 8:30 or 8:15. It’s almost impossible to work out beginning at 6 then shower at 7 and eat a big breakfast and be done by 8 to get back to the cabin and get ready for the excursion. Your best bet is to do most workouts around 4 or 5 pm. The gym is still busy, but not too bad. Working out twice a day is really only possible on sea days.