Hawaii Volcanoes National Park is 29 miles from Hilo, on Hawaii Belt Road (Hwy. 11). If you're staying in Kailua-Kona, it's 100 miles, or about a 2 1/2-hour drive, to the park. Admission is $10 per vehicle; you can come and go as often as you want for 7 days. Hikers and bicyclists pay $5; bikes are allowed only on roads and paved trails.
Note: This information was accurate when it was published, but can change without notice. Please be sure to confirm all rates and details directly with the companies in question before planning your trip.