Sorry TLC, but Hudson Valley residents will want to "chase" this secret underground waterfall.

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Secret Caverns in Cobleskill officially reopens to the public on Friday.

Visitors are taken on about a 1 hour guided tour through what's described as an "accessible prehistoric passageway." It's 50 degrees year-round in the caverns so officials recommend wearing a light jacket or sweater as well as comfortable walking shoes.

"Mother Natures' handiwork can be easily viewed in the form of stalactites, stalagmites, and flowstone," Secret Caverns states on its website. "One can easily view America's 'first' settlers in the form of brachiopods, corals, and crinoids."

The tour climaxes with what officials call a "world-famous" 100-foot underground waterfall.

"Truly a wonder of nature, this rare sight is unmatched among showcases," Secret Caverns states on its website.

Secret Caverns officially reopens at 11 a.m. on Friday. This weekend tours are available from 11 a.m. until 3 p.m. on Friday and Saturday. Secret Caverns will be closed for Easter. For the rest of April, Secret Caverns will be open from 11 a.m. until 3 p.m every Friday, Saturday and Sunday.

Officials add COVID precautions are in place.

"We'll be continuing the covid precautions from last year, so masks are still required and tours every hour on the hour. No reservations required. Cash only," Secret Caverns wrote on Facebook to highlight the reopening.

Secret Caverns is just a short drive from the Hudson Valley. According to Google Maps, you can get to this secret underground waterfall in under two hours from Newburgh, Kingston or Poughkeepsie.

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