What is the area of the Island that Wailoa River State Recreation Area is on?
Wailoa River State Recreation Area: The Wailoa River State Recreation Area is a park in Hilo, on Hawaiʻ i Island in the US state of Hawaii. Hawaii (island):  With an area of 4028 sqmi , it is larger than all of the other islands in the archipelago combined and is the largest island in the United States.
4028 sqmi