Newly completed management plan reduces air tours by 54% at Haleakalā : Maui Now
The National Park Service and the Federal Aviation Administration have completed an Air Tour Management Plan for Haleakalā National Park, which authorizes up to 2,224 air tours per year, a 54% reduction from the existing average of 4,824 flights per year. It identifies no-fly days as Sundays and Wednesdays.
Source: mauinow.com