Redwall Cavern is only accessible by boat. No overland trails lead to the cavern. A hiker can traverse the river bank on the right to a location nearly across the river from the cavern, but the barrier of the water still remains to prevent foot traffic access. 

This was one of the first panorama I worked on.  I had a terrible time getting the lighting right in Lightroom because I hadn't learned my way around the software.  I sent my .cr2 files to a friend, Larry Wieland, who then assembled it with great success at getting the lighting correct on the cliffs outside the cavern.  You can see Larry's work at GCPano.org where he specializes in panoramas of the Grand Canyon with detailed explanations of the geology in the panoramas.  I am a guest panographer on Larry's website. GCPano.org