Question: What is the area of the Island that Wailoa River State Recreation Area is on?
Related documents: [0]  [DOC] Hawaiʻi ( ; ] ) is the largest island located in the U.S. state of Hawaii. It is the largest and the southeastern-most of the Hawaiian Islands, a chain of volcanic islands in the North Pacific Ocean. 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. However, it only has 13% of Hawaii's people. The island of Hawaii is the third largest island in Polynesia, behind the two main islands of New Zealand. [END] 
[1]  [DOC] The Wailoa River State Recreation Area is a park in Hilo, on Hawaiʻ i Island in the US state of Hawaii. [END] 
Answer: 
4028 sqmi
4028 sqmi