Its always hard to get in a good workout when traveling without a real bike but even a crummy hotel gym can be ok. The last two days I've ridden the fat-saddle LifeFitness bike and hour and an hour and a half (usually an hour in the am and 30 minutes late in the day) and then knocked out 100 pushup, did curls, arms extensions, presses, planks, squat combo's, and some lunges. Along with the three hours of walking around NYC/Central Park, with more today, it's actually been a pretty physical trip. Its nice to leave some of the high intensity stuff off the schedule for a week or so.