Horizontal climbing wall Size and availability vary by location. This was a longer, more challenging route that took us higher into the trees. Bouldering walls. Available on Etsy. Learn More. WALL ASSOCIATION'S STANDARDS. There is also a zip line, which starts 80 feet above the Africa! exhibit and travels 760 feet over giraffe, watusi cattle, wildebeest, and other residents of the exhibit. Find your perfect wall. UC4 treated timbers. From climbing peg board rungs to plastic and metal receivers to peg board balls, our inventory has it all. eqfnalxjjcweocezwckaibggdbuoecbpspvkrvgwzaeqicapskutyhiticoslluqmj