If the hotel has stairs, have them do as many rounds as they can with a combination of other bodyweight exercises on each floor or at the ground or last floor (as long as the hotel allows guests using their stairs). Or they could go for a run outdoors or do a combination of bodyweight exercises along with TRX (if they are familiar with it) if they prefer their room environment. There are so many options available, but only you can designed the right routine since you know them the best (and their limitations if they have any). I hope this helps.
As above mentioned, only you can design their routine. But, you must know what exercise tools they have. I have always counted on a hotel to have an area you could use for cardio ( steps, halls, courtyard ) and, I have always counted on a hotel to have an ice bucket. And, they usually will lend you another one. I have had the clients put water in these ice buckets for some resistance. The client may get wet but, a good workout can be done. Use your skills with this in mind. Good luck, Brian Rozzi
If the clients would like some suggestions on ways to reduce the ‘compressed’ feeling from long sitting from travel I did a blog a while back on yoga for travel. I also just did a blog last week with instructions for ‘leg’ series, a gentle all over leg and hip stretch. I often do it with students during the high travel holiday season, and it can easily be done in a hotel room with minimal space.
Chair dips, push-ups(you can elevate your feet on a bed for a little extra burn), lunges back and forth across the room(carrying weight if they choose), bridging and (if they’re able) some vertical pull-ups with give a relatively well rounded routine with very little equipment necessary if their is no fitness area available.