Biking in Hawai`i Volcanoes National Park
Follow the Rules
Expect rain! Rain clouds can overcome sunny skies in minutes. Weather is extremely variable in the park. Along the coast it can be hot, dry, and sunny. At the volcano's summit it can be cold, wet, and windy. Please consult climate and weather information to prepare accordingly for your trip.
Check our Weather and Climate webpage for more information and prepare accordingly for your trip.
Safety and Health
Volcanic Air Pollution
Sulfur dioxide gas and sulfuric acid mist can make breathing difficult especially near Halema'uma'u Crater and on the lower half of Chain of Craters Road. At times, the entire park can be affected. On those days vigorous physical activity should be avoided. Individuals with respiratory or heart conditions, infants and pregnant women should be especially careful to avoid prolonged exposure to volcanic air pollution.
Fees and Permits