Photo by: Larry D. Moore

Larry D. Moore

Jacob's Well Is a Dangerous Natural Wonder

By: Anna Todd

This natural spring has claimed the lives of many divers.

August 01, 2019

When you're in Texas and it's the thick of summer, you need some cold water—stat. In Hays County, Texas (about an hour southwest of Austin) sits a popular natural swimming spot: Jacob's Well. Yes, it's refreshing and beautiful, but it's also a never-ending black hole that has lured several divers to their deaths.

Photo by: Larry D. Moore

Larry D. Moore

Everything Is Bigger in Texas

If you're looking for relief from the stifling Texas heat, you'll likely be drawn to the near-constant 68°F, crystal clear water of Jacob's Well. According to the Mother Nature Network, this natural karstic spring is "fed by the Trinity Aquifer, which pushes up its water through the well and spills it into nearby Cypress Creek." It also happens to be the entrance of Texas's second longest fully-submerged cave, with plunging depths of 100 feet or more.

Underwater exploration efforts by trained cave divers started in 2000, known as the Jacob's Well Exploration Project (JWEP). The efforts began as part of a research project with the Wimberley Valley Watershed Association, and by 2007, a full team was recruited to produce a highly-detailed map of the underwater. To date, they've documented approximately 6,000 feet of passages. So that's intense.

Don't Get Too Ambitious, Friends

For those of you who just want to relax and enjoy this natural wonder, feel free to safely dip your toes around the well's entrance. But if you're a daredevil—you know who you are—you may want to look somewhere else. There have been eight diving fatalities between the years of 1964 and 1984, and therefore only researchers with special permits are allowed to explore the unforgiving depths of Jacob's Well today.

This article first appeared on Curiosity.com.

Next Up

Meet the First 6 Awardees of The Explorers Club Discovery Expedition Grant Program

Today, The Explorers Club, a non-profit world leader in exploration, and Discovery Channel announced the first class of awardees to receive approximately a quarter of a million dollars collectively to fund their expeditions. Let’s meet The Explorers Club Discovery Grant awardees.

Every Year, Thousands of Glass Orbs Are Hidden on This Oregon Beach

When you think of treasure hunters, it's typically Pirates of the Caribbean and Indiana Jones that come to mind. But modern-day treasure hunters do exist. In the coastal town of Lincoln City, Oregon, beachcombers flock to the sand in hopes of finding one very specific treasure: glass fishing floats.

New Year, New Adventures: What the World has to Offer

With a new year comes new opportunities, and there’s no time like the present to start learning more about parts of the world you’ve never dreamed of before. Please review and follow all state and local guidelines while traveling. Updated December 17, 2021

Celebrating Black Explorers with J.R. Harris

Meet J. Robert Harris, a marketing consultant and social scientist by profession and a true explorer by heart. He's been exploring remote parts of the world for 50 years. Using personal anecdotes and archival images, J.R. draws from his own expedition experience and spotlights the struggles and triumphs of Black explorers throughout history and those who forge ahead today.

Massive Stone Jars in the Highlands of Laos Are Shrouded in Mystery

A grassy plain in the Laotian highlands are home to thousands of huge, ancient stone jars. Visit Discovery.com to learn about the mysterious details that have puzzled researchers for decades.

Werewolf of the Mexican South

Ocozocoautla de Espinosa is a small town that hugs one of the least-visited Natural Reserves in Mexico’s southernmost state of Chiapas and it may have a werewolf problem.

The Mystery of the Crooked Forest

Nobody knows what happened to the pine trees in this strange and eerie forest. To date, it remains a mystery.

North Sentinel Island Is Home to the Last Uncontacted People on Earth

This area is one of the last uncharted places left on the map.

5 Stunning Places You Never Knew Existed

Marvel at these awe-inspiring places from around the world.

Climb England’s Stomach-Churning Iron Way

Adventure into Victorian England with rickety bridges and vertical climbs across a 19th-century mine.