FIRST:
NEVER hike alone...or with another tourist. Hike with someone who KNOWS what they are doing.
Hawaii is NOT the Rockies...when lost hike to the ridges...DO NOT follow a stream down the mountain as these lead to giant waterfalls with overgrown jungle which may take your weight for a while, but nothing may be under that canopy.
SECOND: when the previous poster said that areas are 'sticky'... He is speaking of the Mary-Ju-Wana Growers Association.
The Hawaii Trail and Mountain Club may be a good guide to current status of ridge trails that may have eroded in select areas. Nothing can spoil a trek than a ridge trail with a 1000 foot drop on one side and eroded footing. I have been on both of Oahu's mountain ranges and they are much more dangerous than the 14,000 foot 'walks in the park' in the Rocky Mountains.
As to airfields...none are better than the Hawaii Aviation Preservation Society.
http://hiavps.com/http://hiavps.com/Airfields%20of%20Hawaii.htmHeaded by Colin Perry, there are a host of highly experienced hikers that know Hawaii and love aviation within the HIAVPS....! Contact Colin at:
colin@hiavps.org