Ka‘ū Desert Trail to Kamakai‘a Hills

The trailhead for this route is located within Hawai‘i Volcanoes National Park. Parking is available at the Ka‘ū Desert Trailhead, which is clearly marked. It's advisable to arrive early, especially during peak times, as this is a popular starting point for exploring the desert.

The trail traverses a unique volcanic landscape, primarily consisting of lava fields. You'll encounter both smooth pāhoehoe and jagged ʻaʻā lava flows, though much of the route is over the easier-to-walk pāhoehoe. The initial section is well-defined, but beyond the ancient footprints, the trail becomes less distinct and is marked by ahu (rock cairns) across open lava.

This hike offers several unique geological and historical points of interest. Early on, you'll pass the Footprints Trail — Kaʻū Desert, where ancient fossilized human footprints are preserved. Further along, you'll encounter Mauna Iki, a 'little mountain' that erupted in the early 20th century. The destination, Kamakai'a Hills, are prominent dark volcanic cones that are significant active vents.

The Ka‘ū Desert can be hiked year-round, but conditions vary. The 'desert-like' environment is due to a rain shadow and acid rain, so be prepared for potential exposure to the elements. Always check the current weather forecast and air quality conditions, especially for sulfur dioxide gases from Kīlauea, before heading out. Early mornings are often best to avoid the midday heat and potential for afternoon showers.

Yes, the Ka‘ū Desert Trail is located within Hawai‘i Volcanoes National Park, so standard park entrance fees apply. You do not need a separate hiking permit for this specific trail, but always check the official National Park Service website for the latest regulations and fee information before your visit.

No, pets are generally not permitted on unpaved trails within Hawai‘i Volcanoes National Park, including the Ka‘ū Desert Trail. This is to protect both the delicate ecosystem and wildlife, as well as your pet's safety on the rugged volcanic terrain. Service animals are an exception, but always check park regulations for specific guidelines.

Given the remote and exposed nature of this trail, it's crucial to be well-prepared. Bring plenty of water (more than you think you'll need, as there are no water sources), snacks, sturdy hiking boots, sun protection (hat, sunscreen), raingear, and a first-aid kit. A map and compass or GPS device are also highly recommended, as the trail can be indistinct in places.

This hike is considered moderate, requiring good fitness due to its length and the uneven volcanic terrain. While the elevation gain is not extreme, navigating the lava fields can be tiring. The solitude and exposure to the elements also add to the challenge, making it suitable for experienced hikers.

The Ka‘ū Desert is a truly otherworldly place, characterized by its desolate 'bleak hellscape' appearance. This is due to a combination of the rain shadow from Mauna Loa and acid rain from Kīlauea, which inhibits plant growth. The landscape features unique and colorful lava formations with hues of blue, golden, crimson, and purple, offering a stark and beautiful contrast to more lush Hawaiian environments.

Yes, the route primarily follows the Kaʻu Desert Trail for about 60% of its length. It also passes through sections of the Footprints Trail, covering approximately 46% of that path, particularly in the initial segment where the ancient human footprints are located.

While the Ka‘ū Desert is largely barren, life persists. You might spot sparse, tenacious ʻōhiʻa trees growing in lava crevices. The area is also home to native insects and birds adapted to this harsh environment. However, the primary focus of this trail is the geological formations and the profound sense of solitude rather than abundant wildlife.