About LeHardys Rapids
LeHardys Rapids on the Yellowstone River offers one of the few standing waves suitable for advanced river surfing in Yellowstone National Park. Located between Yellowstone Lake Outlet and the Grand Canyon of the Yellowstone, this Class III rapid features a reliable play wave during high summer flows. NPS data shows river flows peak in June and July from snowmelt, creating short windows for surfing on inflatable SUPs or short surf kayaks. Popular among expert whitewater enthusiasts, access is via the Yellowstone River Trail from Fishing Bridge; a 2-mile hike-in with portage around the rapid is required. Always check USGS gauges for flows over 1,000 cfs for wave formation. This spot demands respect for the park's wild rivers, where currents exceed 10 mph and water temps hover at 45F even in August.
Safety Considerations
River surfing here follows NPS backcountry boating protocols: obtain a free permit at ranger stations, launch only from designated put-ins, and scout rapids thoroughly. Hypothermia strikes fast in 45F water; wear full drysuits per REI expert guidelines. Bison and grizzly bears frequent the river corridor; carry bear spray and make noise per NPS wildlife safety rules. Avoid sunset sessions due to thunderstorm risks, with lightning deaths reported yearly. Leave No Trace principles apply: pack out all trash, use established campsites. Recent incidents include pinned boats at Alum Wave downstream; practice combat rolls and self-rescue. Women and children under 16 prohibited without advanced skills, per park advisories. Monitor nps.gov/yell for closures after 2023 floods reshaped the riverbed.
Essential Gear
Pack NRS Pilot Knife for quick release, Astral Brewer shoes for grip on slick granite, and GoPro for documenting runs while wearing a PFD.
Emergency Tips
Deploy whistle blasts and high-visibility throw bag; hike to river trail for cell signal or fire three shots from firearm. Evac from Canyon Village is 10 miles downstream.