Your pack size and weight will be determined by your planned route and number of days out. However, realize that wide, heavy packs are difficult to maneuver through narrow, water-choked canyons.
The importance of proper footwear cannot be overemphasized. You'll be in water much of the time. Most people use high-top canvas running shoes or light hiking shoes to provide protection to the feet, and moderate grip when climbing. Leave your heavy mountaineering boots at home. Though you will be carrying a pack which would generally dictate sturdy boots, the environment dictates otherwise. Sport sandals such as TevaΓÇÖs are great for water and day hikes, but your feet are exposed. Any backpacker knows that you must protect those feet! Teva and other companies now offer water shoes especially made for canyoning.
