Fun, Wet, Narrow. Orderville is a wonderfully fun canyon. With two short obstacles where ropes are often used, it is the easiest technical canyon in the Zion:Canyoneering book, or the hardest off-trail hike. Due to the clay soils in its headwaters, Orderville can be exceptionally slippery, so the experienced Ordervillean brings a short rope on all trips. Orderville changes from trip-to-trip more than most canyons, and the washing away of a log or filling of a pool could make that easy move last trip difficult and dangerous. Bring a rope to use as a handline, and the skills required for using it safely.
Orderville Canyon is named for the town of Orderville, founded in 1875 by the pioneers in Mount Carmel who enrolled in The United Order of Enoch. Orderville became the most successful expression of the communal United Order movement, and included Zion luminaries Isaac Behunin and William Heaps. It expanded to 546 people by 1877. Interest in the communal life waned and the town returned to ordinary capitalism about 1883.
Orderville Canyon sees quite a few accidents. Jumping into shallow pools tends to break ankles and lower legs. Rescue is slow and difficult. Don't jump.
The start of Orderville includes a fair amount of hiking in the full sun. In summer, an early start is highly recommended. The short spur road down to the floor of Orderville is a high-clearance 4WD road, and should only be attempted by experienced jeepers. Once started down this road, turning a vehicle around is impossible.
The bottom half of Orderville is wet - great fun when it is hot out. A backcountry water-park. Water protection for cameras and anything else you want to keep dry is essential. The footing can be uncertain, and the technical difficulties are few, so ski or trekking poles, or a hiking staff, are useful.