Piru Creek is a significant waterway in Southern California, originating in the Los Padres National Forest and flowing south through Ventura and Los Angeles counties before joining the Santa Clara River. This 71-mile long stream drains a watershed of approximately 497 square miles, making it the largest tributary of the Santa Clara River system. The creek offers diverse paddling opportunities across several distinct sections.

The Upper Piru Creek, including Gold Hill Gorge and Hard Luck Gorge, provides challenging Class IV-V whitewater suitable for expert kayakers. The 15-mile stretch from Gold Hill Road to Pyramid Lake features technical rapids and scenic canyon views. Below Pyramid Dam, the creek transitions to a more moderate Class III-IV run for 7.25 miles to Frenchman's Flat, part of which is designated as a Wild & Scenic River. The remote 19.3-mile Wilderness Run from Frenchman's Flat to Lake Piru offers a true backcountry experience with Class IV rapids. The final 4-mile section from Lake Piru to the Santa Clara River confluence provides an easier Class II float.

Piru Creek's flow is heavily influenced by releases from Pyramid Lake and seasonal rainfall. The best paddling conditions typically occur in spring and early summer, with some sections only runnable after significant precipitation. The creek's ecosystem supports diverse flora and fauna, including endangered species and wild trout populations. Notable landmarks include the spectacular Falls Gorge and unique geological formations throughout the canyon.

Primary access points are located at Gold Hill Road, Pyramid Lake, Frenchman's Flat Campground, and Lake Piru, all within an hour's drive of Los Angeles. The creek holds cultural significance as one of the first Wild & Scenic Rivers designated in Los Angeles County, reflecting its importance for recreation and conservation.

Safety considerations are paramount, especially in the more remote sections where rescue access is limited. Paddlers should be aware of variable water releases from dams and check current conditions before embarking. Some areas require an Adventure Pass for parking. For those seeking a multi-day adventure, the Wilderness Run from Frenchman's Flat to Lake Piru offers an excellent backcountry trip, though it requires careful planning and self-sufficiency. This section showcases the raw beauty of Southern California's rugged landscape and provides a rare opportunity for extended wilderness paddling in the region.

Piru Creek's combination of challenging whitewater, scenic beauty, and proximity to urban areas makes it a prized destination for Southern California paddlers, offering experiences ranging from day trips to extended wilderness adventures.