Triathlete,
That one isn't Grandpa Bob. That is Michael Woods' 1998 Amigo known as "The Slinky". Michael Woods is the "zoo keepper" for Moab ZuZoo this year, and as long as he can find a tow vehicle to pull it he will be in the Slinky. I believe his is concidering entering into the rock climbing arena with the Slinky this year.

Deby