Coming into the park from Wall has the highest ground and the best sweeping overlook views. As you head south towards the visitor center the views become more diverse- prairie, rock formations, and a few sweeping overlooks blended together. Depends on what kind of views you are looking for

Loop is paved and fine for trailers

There are a few tight curves but you should be able to make it.

No major drops. There’s one pull that I recall having a drop off the parking area. No worries on driving.

We went through at mid-day and had quite a little wait for part of a bison herd to decide if they were ALL crossing the road, or some of them. ::chuckling:: It was a fun and interesting experience, though after the first 30 minutes, we turned on the air conditioning and closed the windows, as the stench was staggering as they came up out of the mud hole beside the road.

A couple hours.

There are so many places to stop and pull off to take pictures and admire the view. Many are marked and have off the main road parking, but some of your best pictures may come from a wider spot of the road and a view only you see. Give yourself plenty of time if that’s how you travel.

A couple

Yes, there are restrooms at the visitor's center, a restaurant inside the park, and at several of the larger parking lots. You shouldn't have to drive more than 30-45 minutes between restrooms.

You need a parks pass to enter the loop road.