There is no hot tub, but may want to check Yellowstone Hot Springs pools, only 10 min. away.

According to the Yellowstone Gateway Inn’s website there is an ADA Accessible accommodation. Mobility Accessible Two Bedroom Kitchen Suite sepater-border Fully accessible suite with wheelchair access, wide doors, and roll-in shower Sleep up to 8 in 750 feet of upscale, accessible comfort during your time in Yellowstone. King bed with furnishings, media center, and 42” HDTV in one bedroom Queen bed and furnishings in second bedroom Fully equipped kitchen and dining area for 8 and ADA front-knob stove Relax at the media center in the living room with a 55” HDTV and dual sofa beds Heating/air conditioning to keep you comfortable all year Free U.S. long-distance calls, high-speed wireless internet, satellite TV, Blu-ray/DVD players, and a selection of movies Complimentary organic coffee and teas, natural bathroom amenities, laptop safe, and more Patio view of mountains in nearby Yellowstone

You can get a look by using the "Street View" function of Google Maps. I will say that this doesn't do justice to the beauty of the mountains in the background. The area is very pretty.

Hola! This inn is well situated to visit all areas of the park and return at night. However you should be aware that nearly all of the park roads are closed to automobile traffic until mid to late April. And many of the snowmobile accessible roads will be closed by late March. Recommend you check the nps dot gov forward slash yell forward slash planyourvisit forward slash parkroads is a website that gives the opening dates for YNP roads.