Growing air tours crowd isle skies

In this 2018 photo, Amy Gannon smiles in Wisconsin. Gannon and her 13-year-old daughter, Jocelyn, both of Madison, Wis., were among the victims of a tour helicopter crash in Hawaii on Thursday, Dec. 26. (Judy Newman/Wisconsin State Journal via AP)

Helicopter tours fly through Waimea Canyon. (Courtesy photo)

In 2013, Paradise Helicopters in Turtle Bay began offering tours on a former Honolulu Police Department MD500D helicopter which has been restored as a replica of The Chopper from the “Magnum, P.I.” television series. (Honolulu Star-Advertiser/Cindy Ellen Russell)

Helicopter crash on Oneawa Street in Kailua, with reports of three fatalities, Monday, April 29. A section of the crashed helicopter is seen on a driveway off Oneawa Street. (Honolulu Star Advertiser/BRUCE ASATO)

HONOLULU — With sightseers hoping to get a bird’s-eye view of flowing lava, Hawaii Volcanoes National Park in 2018 was the most popular site in the country for commercial air tours of national parks.