Berlin Wall, 100 miles.

More and more this is very intriguing, 100 miles following the Berlin Wall. I'd assume it's flat which caters to my training grounds. http://www.100meilen.de/en. Considering the uncertainty of UTMB I've been looking for alternatives. Yeah it's not a big mountain race but as I've found out at Lakeland it's tough to race in the mountains without training in the mountains, this seems like an excellent option.