Lava fountains rising from inside Halemaʻumaʻu crater at Kīlauea's summit, viewed from a USGS Hawaiian Volcano Observatory vantage — the kind of summit fountaining that defines the multi-episode eruption cycle summer 2026 visitors are watching

Hawaii Volcanoes National Park Tours: Summer 2026 Guide

Hawaii Volcanoes National Park Tours: Summer 2026 Guide

We may earn a commission when you book or buy through links on this page.