Footprints Trail

This is a quick, fascinating walk across the Kaʻū Desert to see fossilized human footprints preserved in ash from Kīlauea’s 1790 eruption. From the Kaʻū Desert Trailhead on Highway 11, follow ahu (stacked-rock cairns) across an open lava-and-ash plain to a small shelter that protects several prints. Plan on roughly 1.75 miles total out-and-back with minimal elevation gain (about 100 feet). The footing is loose ash, sand, and gravel—easygoing but not a sidewalk.

The landscape is bare and otherworldly: young lava flows, ash fields, and stunted ‘ōhi‘a punctuate wide-open views. Despite the “desert” name, this area gets rain—but acidic conditions and porous lava keep it looking barren. At the shelter (about 0.8–0.9 miles one way), take time to look around; shifting sands often reveal better-defined prints nearby. The site’s story is powerful: long attributed to fleeing warriors, research suggests many prints were made by women and children during or soon after the 1790 eruption.

Exposure is total—no shade, no water, and frequent wind—so bring sun protection, water, and a light shell. Temperatures can be cool at elevation even when the sun is intense. The route is well-marked by cairns but still requires paying attention, especially in low contrast light. Wear sturdy footwear; the loose surface can be tiring if you’re in flip-flops.

If you’re enjoying the solitude and want more, continue past the shelter to meet the Kaʻū Desert Trail and explore farther toward Mauna Iki. Otherwise, turn around for a short, rewarding outing that blends geology, history, and a sense of remoteness. It’s quieter than most park highlights, which is a big part of the appeal.

Best time to hike: Year-round, but go early or late for cooler temps and softer light. Dry, clear days make the footprints easier to see. Crowds are typically light, so you don’t need to time it for solitude—just for comfort and visibility.