Nāhuku via Puʻupuaʻi
What to Expect
Safety Advisory
Volcanic fumes (sulfur dioxide) drift across the crater floor unpredictably. If you smell rotten eggs or feel throat irritation, move upwind quickly. People with asthma or respiratory conditions should check vog conditions at the visitor center before heading out.
The crater floor retains heat and offers zero shade for roughly two miles. Combined with tropical humidity, dehydration sneaks up fast — carry at least two liters even though the distance seems modest.
Trail Details
Pro Tips
Start at the Pu'upua'i trailhead rather than the more popular Kilauea Iki Overlook to avoid the crowd bottleneck — you'll have the crater descent mostly to yourself for the first hour.
Wear sturdy closed-toe shoes with grip, not sandals. The crater floor is uneven pahoehoe lava with ankle-twisting cracks, and the Devastation Trail boardwalk gets slick when wet.
Linger at the far end of the Nahuku lava tube past where most tourists turn around — there's an unlit extension that reveals the raw scale of the tube before it was developed, and your phone flashlight is all you need.
