The layers of stone are quite impressive.
On the waterway there were also many additional passengers.
Unfortunately, we went there on a warm day (the high approached 95F or 35C), and as the tour consists of riding a boat on the river, the humidity made it aweful. In the picture below, Prasad and I are sustaining the humidity by sipping some soda.
The Dells also feature the "Witch's Gultch", a canyon that feeds into the river. The canyon is covered in moss and was remarkably cool during the blistering summer heat.
Prasad was particularly pleased by the relatively cool temperatures, as shown below.
Finally, one cannot visit the Dells without seeing the "Standing Rock", and a poor canine who needs to jump onto the rock in order to entertain the tourists.