When I go to certain hotels with my husband sometimes they do not have gyms (our fav. in LV is Sam's Town) they have a pool. We always stay on the 9th floor, their highest. I get permission to use the stair wells for exercise. I walk around the top floor which is a large circle that overlooks down onto the indoor waterfall and food courts, it is close in size to a reg. school track size. I walk around 4 times, then the staircase up & down 2 twice. I do this set 4 times total.
Also in the morning I get up early and walk around the neighborhood for about an hour. Last time I was in LV I ate like a horse and lost 10 lbs. They also have a bowling alley here and I try to bowl at least once when we stay