Looking for Travel Trailer with Specific Features.

I remember seeing some 5th wheel trailers that had what looked like a full sized tub at a recent RV show. Wasn't really paying attention to specific makes/models in the fivers, just looking at neat stuff. I agree with what others have posted about small water heaters, but I thought the extra room would be nice, even for just a shower - I'm a bigger guy and hate trying to get clean in a small shower.