I went into a Hobbytown USA here in San Jose CA and saw that they have a synthetic rock course set-up inside the store(they have an event every other Wed). Since researching Rock Crawling, I have found that many hobby shops and most of the HT USA's actually have these man-made courses....Maybe it would be fun to make some of your own obstacles?? Try and email some of the Hobbytown's in the US for the best synthetic materials to use if you wish to build your own...Other than that, If someone was making a course out of natural outdoor rocks and branches, you would only be limited by your lack of imagination. Watching Rock Crawling Videos on Youtube is a great place to get inspiration...

Good Luck,

Z

Pictured: Synthetic Rock Crawling rock...