The best walks and hikes around Mauna Loa

Yes, but it requires serious preparation. Mauna Loa is the world's largest active volcano, and its high-altitude environment presents unique challenges like altitude sickness, unpredictable weather, and rugged volcanic terrain. It is crucial to check the current volcano alerts and trail conditions on the official Hawaiʻi Volcanoes National Park website before your hike.

Altitude sickness is a significant risk on Mauna Loa's high-altitude trails. To minimize your risk, acclimatize by spending time at intermediate elevations before attempting the summit. Stay well-hydrated by drinking plenty of water, avoid alcohol and caffeine, and ascend slowly. If you experience symptoms like headache, nausea, or dizziness, descend to a lower elevation immediately.

Yes, for any overnight trips in the Mauna Loa backcountry, including stays at the Puʻu ʻUlaʻula (Red Hill) Cabin or the Mauna Loa Summit Cabin, a backcountry permit is required. These can be obtained from the Hawaiʻi Volcanoes National Park's backcountry office. Day hiking generally does not require a permit, but always verify current regulations before you go.

Yes, there are several shorter options. The Manukā Nature Trail loop is a pleasant 2.1-mile (3.4 km) walk through a native forest. Another great choice is the Pu‘u o Lokuana Cinder Cone Trail Loop in the Kahuku Unit, which offers a gentle walk with views of historic lava flows.

The hike to the summit is an extremely challenging, multi-day backcountry trek best suited for experienced and well-prepared hikers. The trail crosses a stark, otherworldly landscape of ʻaʻā and pāhoehoe lava flows at very high altitudes. The reward is reaching the rim of Mokuʻāweoweo, the massive summit caldera. A difficult but rewarding route is the Mauna Loa Summit Cabin trail.

While extremely strenuous, it is possible for very fit, acclimatized hikers to day-hike to the summit rim from the Mauna Loa Observatory. The Mauna Loa Summit from Observatory route is a 12.9-mile (20.7 km) round trip over rugged lava and at high altitude, typically taking over 6 hours. This should only be attempted with an early start and ideal weather conditions.

The Kaʻū Desert is a unique and arid landscape shaped by volcanic activity and acid rain. It's not a true desert but receives little rainfall. Hiking here involves crossing vast, cracked lava flows with minimal vegetation. The Ka‘ū Desert Trail to Kamakai‘a Hills offers a fantastic experience of this dramatic environment.

Yes, there are some enjoyable loop trails. For a moderate hike with great views, the Mauna Loa Observatory loop from Papaloa is a 7.6-mile (12.3 km) circular route. For a much shorter and easier loop, consider the Puʻuhonua o Hōnaunau National Historical Park loop, which explores a significant cultural site.

Essentials include sturdy hiking boots, layered clothing for a wide range of temperatures, and high-quality rain gear, as weather can change suddenly. For high-altitude hikes, you'll need sun protection (hat, sunglasses, sunscreen) and much more water than you think you'll need—at least 4 liters per person per day. Navigation tools like a map, compass, or GPS are also critical.

The area is highly rated by the komoot community. Reviewers often praise the unique volcanic landscapes, the sense of solitude on the trails, and the breathtaking views from the high-altitude routes. The challenge and reward of hiking on such a massive and powerful volcano is a frequently mentioned highlight.

There are over 50 designated hiking routes around Mauna Loa. These trails offer a wide variety of experiences, from easy nature walks in forested areas to moderate desert treks and difficult multi-day expeditions to the summit.

Yes, while Mauna Loa itself is a high-altitude mountain, its slopes reach the sea. You can find beautiful coastal trails nearby. The short hike to Kāwā Bay offers a chance to see a scenic black sand beach. For a more challenging coastal trek across hardened lava fields, consider the Mauna Iki Trail which can be linked to other coastal routes.