Cave Survey on the Big Island of Hawaii

For more detailed information on caving techniques, caving gear, and cave projects, visit my website at: www.derekbrist...
Caves are delicate and potentially dangerous places. For more information on wild caving, vertical caving techniques, and cave survey, visit the National Speleological Society website:
caves.org
To find a local grotto (caving club) visit:
caves.org/comm...
White Nose Syndrome (WNS) is a disease that is devastating to bats. To learn more about what you can do to help, along with information on how to properly decontaminate caving gear, visit:
caves.org/WNS/...
Cave Videography Gear I Use: (Note that these are affiliate links)
Full-frame Low-Light Camera - amzn.to/2TkIUxT
In-Cave Fast Prime Lens (a7iii) - amzn.to/2TnkB27
General Purpose Zoom Lens (a7iii) - amzn.to/2Trc2Uf
Wide Angle Zoom Lens (a7iii) - amzn.to/2Duwuhl
Gimbal - amzn.to/2TKccpT
ND Filter - amzn.to/2PAvBuJ
Soft-Case for Caving (a7iii) - amzn.to/2QanKDA
Tripod - amzn.to/2PVGrvv
Camera Bag - amzn.to/2RZekYT
Helmet-Mounted Action Camera: amzn.to/2qTa0yT
Drone - amzn.to/2PRs7nU
APS-C Run and Gun Camera - amzn.to/2DKTMQU
In-Cave Prime Lens (a6500) - amzn.to/2DuyLZK
General Purpose Zoom Lens (a6500) - amzn.to/2Q5Mgpw
Wide Angle Zoom Lens (a6500) - amzn.to/2Tnl98b
Soft-Case for Caving (a6500) - amzn.to/2OPF6Be
Hard-Case for Wet Caving (a6500) - amzn.to/2DxFOki

[@tq64to4]

Caving aside.. I subbed for the great camera work and editing! Thanks for taking the time to stop and get all those epic shots!

[@thesixstringshooter]

Man... I dream of being able to go caving as much as you do. Truly living an incredible life.

[@cyvilburks9899]

Seeing the young man in the cave gives me hope. Age my not get in the way of caving when its within one's ability to get around in the dark.

[@davebunnell1]

John Martins is one of my favorite caves of the many I've visited on the island and one of the more photogenic. Quite a few shots from it appear in my book Caves of Fire. I hope someday it can be protected through the CCH, although I suspect its many entrances are on many different properties.

[@richardknapp570]

I thought 'turning angles' was the way to overcome the magnetic interference. Still no guarantee of overcoming issue and makes errors even harder since they are additive.