It is recommended to rent a car to explore Hilo and the surrounding areas. The cost of a rental car is around $40-$50 per day. Travel time to Hawaii Volcanoes National Park is approximately 45 minutes, while travel time to Akaka Falls State Park is around 30 minutes.
If you have more time, consider adding a visit to the Mauna Kea Observatory to stargaze, or relax at one of Hilo's black sand beaches. If you have less time, choose between visiting either Hawaii Volcanoes National Park or Akaka Falls State Park.
The airport in Hilo is Hilo International Airport (ITO), which is located around 3 miles east of downtown Hilo.