All participants are to wear appropriate clothing and footwear: long pants, long-sleeved shirt, close-toed shoes, or boots (any student wearing sandals or flip flops will not be permitted at the site due to safety reasons). There is prickly vegetation which can cause skin irritations and the best way to prevent this is to wear appropriate clothing. Anyone wearing shorts we ask you to not lean down on the ground due to thistle, nettle, and other prickly vegetation.