Question: What is the area of the Island that Wailoa River State Recreation Area is on?

full_context: Document 1: 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.
Document 2: Maui: The island of Maui ( ; Hawaiian: ] ) is the second-largest of the Hawaiian Islands at 727.2 square miles (1,883 km) and is the 17th-largest island in the United States. Maui is part of the State of Hawaii and is the largest of Maui County's four islands, which include Molokaʻ i, Lānaʻ i, and unpopulated Kahoʻ olawe. In 2010, Maui had a population of 144,444, third-highest of the Hawaiian Islands, behind that of Oʻ ahu and Hawaiʻ i Island. Kahului is the largest census-designated place (CDP) on the island with a population of 26,337 as of 2010 and is the commercial and financial hub of the island. Wailuku is the seat of Maui County and is the third-largest CDP as of 2010 . Other significant places include Kīhei (including Wailea and Makena in the Kihei Town CDP, the island's second-most-populated CDP), Lahaina (including Kāʻ anapali and Kapalua in the Lahaina Town CDP), Makawao, Pukalani, Pāʻ ia, Kula, Haʻ ikū, and Hāna.
Document 3: Hawaiʻi Volcanoes National Park: Hawaiʻ i Volcanoes National Park, established on August 1, 1916, is an American National Park located in the U.S. state of Hawaii on the island of Hawaii. It encompasses two active volcanoes: Kīlauea, one of the world's most active volcanoes, and Mauna Loa, the world's most massive shield volcano. The park delivers scientists insight into the birth of the Hawaiian Islands and ongoing studies into the processes of volcanism. For visitors, the park offers dramatic volcanic landscapes as well as glimpses of rare flora and fauna.
Document 4: University of Hawaii at Hilo: The University of Hawaiʻ i at Hilo or UH Hilo is a public co-educational university in Hilo, Hawaiʻ i, United States. It is one of ten branches of the University of Hawaiʻ i system. It was founded as Hawaiʻ i Vocational College (Hawaiʻ i College) in 1941. In 1970 it was reorganized by an act of the Hawaiʻ i State Legislature.
Document 5: Hawaii (island): 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.
Document 6: Kilauea Military Camp: Kīlauea Military Camp (KMC) is operated as a Morale, Welfare and Recreation (MWR) facility on Hawai‘i Island, also known as the Big Island, in Hawaiʻi. It is located inside Hawaiʻi Volcanoes National Park. This U.S. Department of Defense (DOD) facility is at an elevation of 4000 feet, within walking distance from Kilauea Volcano, the world’s most active volcano.
Document 7: List of islands of Hawaii: The following is a list of islands of Hawaii. The state of Hawaii, consisting of the Hawaiian Islands, has the fourth-longest ocean coastline of the 50 states (after Alaska, Florida, and California) at 750 miles (1,210 km). It is the only state that consists entirely of islands with 6,422.62 mi² (16,635 km²) of land. The Hawaiian Island archipelago extends some 1,500 miles (2,400 km) from the southernmost island of Hawaiʻi to the northernmost Kure Atoll. Despite being within the boundaries of Hawaii, Midway Atoll, comprising several smaller islands, is not included as an island of Hawaii, because it is classified as a United States Minor Outlying Islands and is therefore administered by the federal government and not the state.
Document 8: Lava Tree State Monument: Lava Tree State Monument is a public park located 2.7 mi southeast of Pāhoa in the Puna District on the island of Hawaii.
Document 9: Iao Valley: Iao Valley (Hawaiian: "ʻ Ī-ao": "cloud supreme", pronounced similar to "EE-ow") is a lush, stream-cut valley in West Maui, Hawaii, located 5 km west of Wailuku. Because of its natural environment and history, it has become a tourist location. It was designated a National Natural Landmark in 1972.
Document 10: Huilua Fishpond: Huilua Fishpond, in Ahupuaʻ a O Kahana State Park on windward Oʻahu, is one of the few surviving ancient Hawaiian fishponds that were still operational well into the 20th century. It was declared a U.S. National Historic Landmark in 1962, shortly after it had been severely damaged by the 1960 tsunami. It was added to the National Register of Historic Places on L: December 29, 1962.
Document 11: Mauna Loa: Mauna Loa ( or ; Hawaiian: ] ; English: Long Mountain ) is one of five volcanoes that form the Island of Hawaii in the U.S. state of Hawaiʻi in the Pacific Ocean. The largest subaerial volcano in both mass and volume, Mauna Loa has historically been considered the largest volcano on Earth. It is an active shield volcano with relatively gentle slopes, with a volume estimated at approximately 18000 mi3 , although its peak is about 120 ft lower than that of its neighbor, Mauna Kea. Lava eruptions from Mauna Loa are silica-poor and very fluid, and they tend to be non-explosive.
Document 12: Maui: The island of Maui ( ; Hawaiian: ] ) is the second-largest of the Hawaiian Islands at 727.2 square miles (1,883 km) and is the 17th-largest island in the United States. Maui is part of the State of Hawaii and is the largest of Maui County's four islands, which include Molokaʻ i, Lānaʻ i, and unpopulated Kahoʻ olawe. In 2010, Maui had a population of 144,444, third-highest of the Hawaiian Islands, behind that of Oʻ ahu and Hawaiʻ i Island. Kahului is the largest census-designated place (CDP) on the island with a population of 26,337 as of 2010 and is the commercial and financial hub of the island. Wailuku is the seat of Maui County and is the third-largest CDP as of 2010 . Other significant places include Kīhei (including Wailea and Makena in the Kihei Town CDP, the island's second-most-populated CDP), Lahaina (including Kāʻ anapali and Kapalua in the Lahaina Town CDP), Makawao, Pukalani, Pāʻ ia, Kula, Haʻ ikū, and Hāna.
Document 13: Hilo High School: Hilo High School is a public, co-educational high school of the Hawaii State Department of Education, and serves grades nine through twelve. Established in 1906, its first class graduated in 1909. Hilo High School is near the Wailuku River in Hawaii County on the Big Island of Hawaii. The campus boasts the black marble terrazzo and gray gravel sculpture "Matrix" by Ken Shutt in the middle of its two patios in its courtyard. The school is situated at 556 Waianuenue Avenue on across the street from Hilo Intermediate School, one of its two feeder schools, the other being Kalanianaole Intermediate School. Hilo's symbol and mascot is the Viking and its school colors are blue and gold. Hilo High School celebrated its centennial during Homecoming of 2006. Hilo High School's crosstown rivals are the Warriors of Waiakea High School.
Document 14: Lōʻihi Seamount: Lōʻihi Seamount (also known as Loihi) is an active submarine volcano about 35 km off the southeast coast of the island of Hawaiʻi. The top of the seamount is about 975 m below sea level. This seamount is on the flank of Mauna Loa, the largest shield volcano on Earth. Lōʻihi, meaning "long" in Hawaiian, is the newest volcano in the Hawaiian-Emperor seamount chain, a string of volcanoes that stretches over 5800 km northwest of Lōʻihi. Unlike most active volcanoes in the Pacific Ocean that make up the active plate margins on the Pacific Ring of Fire, Lōʻihi and the other volcanoes of the Hawaiian-Emperor seamount chain are hotspot volcanoes and formed well away from the nearest plate boundary. Volcanoes in the Hawaiian Islands arise from the Hawaiʻi hotspot, and as the youngest volcano in the chain, Lōʻihi is the only Hawaiian volcano in the deep submarine preshield stage of development.
Document 15: Evolution of Hawaiian volcanoes: The fifteen volcanoes that make up the eight principal islands of Hawaiʻ i are the youngest in a chain of more than 129 volcanoes that stretch 5800 km across the North Pacific Ocean, called the Hawaiian-Emperor seamount chain. Hawaiʻ i's volcanoes rise an average of 4572 m to reach sea level from their base. The largest and most famous, Mauna Loa, has built itself up to a height of 4169 m . As shield volcanoes, they are built by accumulated lava flows, growing no more than 3 m at a time to form a broad and gently sloping shape.
ground_truth: 4028 sqmi