Special thanks to Jeffery Newell for debunking this site, via his blog Autistic Skeptic
The claim: Site of WWII German / Italian prison camp is renovated; completed barracks and behind the camp in the woods is a training facility with high tight ropes and a rappelling deck.
What it really is: Camp Crossville was a prisoner of war camp during World War II. It housed German and Italian officers beginning in November, 1942 until the close of the war. It is frequently called the "Jap Camp" by local residents. However, no Japanese prisoners were ever housed there. It is located on property which currently houses the Clyde M. York 4-H Training Center near Pomona. A museum is located there which houses artifacts from the POW camp and is open Monday-Friday.