While many have toured Howe Caverns, very few have explored what's know as Renolds River. That is until cavers from around the Northeast crawled through tight crevices, in some cases, wading through chest-high waters. Our Brandon Walker crawled and climbed with them as they explored for a good cause.

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HOWES CAVERN, N.Y.-- The experience is in some instances cryptic.

"You never know what you're gonna find," said Mitch Berger, a caver, from Boston.

The journey, full of cavernous twists and tight turns.

"The ceiling drops down to about two feet."

Cavers, in all 20 from throughout the northeast, getting ready for a day long trek through the depths of Howe Caverns.

They're mapping out new routes in the Renolds River, an underground tributary. Home base under this 107 foot rotunda, all part of what's called the mystery passage.

"There are very few people who've been in there before," said Chuck Porter, a caver, and organizer of Saturday's event.

They're doing it not only because it's what they do, but to lend a helping to a community still paving its road to recovery.

"We're glad to help out cause we'd certainly like to repay the folks around Schoharie that have been so kind to us through the years," Porter said.

It costs $100 to be here Saturday. The money will go to flood relief efforts in Schoharie County.

"Schoharie has a whole lot of caves and its a great place and we care about it a lot."

"It actually was a part of the tour of Lester Howes' day back in the 1800s. He would take folks back there," said Bob Holt, general manager, Howe Caverns.

Since then, not much has happened back here over the past 40 years. While here, cavers will snap pics of what they find.

Exploring new sites, while giving back to a community many here say has already given so much to them.

"Schoharie is like home to many of us."