The Cathedral District routes are unofficial and unmaintained; the Park Service says routefinding, navigation and map-reading skills are important. A wash on the walk may have shallow flowing water. Access roads require high clearance, with four-wheel drive often recommended; bentonite clay and soft sand can become impassable when wet, and the roads are not plowed in winter. There is no potable water in Cathedral Valley. The Hartnet Road approach from UT-24 crosses the Fremont River without a bridge.