Jacob’s Well USA 

Jacob’s Well is a natural area located in the Texas Hill Country, northwest of Wimberley, Texas. Here are some facts about Jacob’s Well cave USA:

  • Region: Texas
  • Coordinates: 30.0343769,-98.1467211
  • Depth: 137 ft
  • Remarks:
  • Type: Cave
  • Jacob’s Well cave descends vertically for about 30 feet, then continues downward at an angle through a series of silted chambers separated by narrow restrictions, finally reaching an average depth of 120 feet.
  • The cave system has been explored and mapped by cave divers of the Jacob’s Well Exploration Project and has been shown to consist of two principal conduits. One passageway measures approximately 4,500 feet from the surface with a maximum depth of 137 feet, and a secondary one extends approximately 1,000 feet in length from the point where it diverges from the main conduit.
  • The cave is also an attraction for open-water divers, some of whom are inexperienced with the specialized techniques.
  • Jacob’s Well is one of the longest underwater caves in Texas, and it serves as headwaters to the Cypress Creek.

Jacobs Well History

The well has been associated with Jacob in religious tradition for roughly two millennia. The traditional site of Jacob’s well is located inside an Eastern Orthodox church and monastery, in Balata village on the outskirts of the Palestinian city of Nablus in the West Bank. The well is significant for Christians, Jews, and Muslims. For Christians, Jacob’s well represents a place where a sinful person can come and encounter Jesus as Savior. For Jews and Muslims, the importance of Jacob’s well is due to its ancient connection to the patriarch Jacob, the son of Isaac and the grandson of Abraham. When settlers first came upon Jacob’s Well near Wimberley around 1850, they discovered a magical well instead of a swimming hole. Since the well was discovered, at least 4,500 feet of it has been explored.

Jacob’s Well False Chimney

Jacob's well false chimney

Jacob’s Well Natural Area

Jacob’s Well Natural Area is a popular recreational destination located just outside of Wimberley, Texas. The area features an artesian spring and underwater caves, including Jacob’s Well, an extensive underwater cave that is home to salamanders, crawfish, amphipods, and isopods. The property consists of five land surveys that all use the spring as a corner to tie the properties together, and these surveys were conducted in 1847 by a prominent surveyor named Bartlett Sims. In the early 1850s, William C. Winters, a San Jacinto veteran and early settler of Wimberley, hiked up Cypress Creek searching for its source and found an overflowing spring. It is said that Mr. Winters exclaimed “like unto a well in Bible times.” Thus it was named ‘Jacob’s Well. Jacob’s Well Natural Area remains a popular recreational destination today and is open year-round for exploration. Visitors can take guided morning tours led by park staff and/or dedicated volunteers, where they can learn about the history of Jacob’s Well and the aquifer system that sustains it, as well as the local wildlife and vegetation found there.

Jacob's well natural area
Jacob’s Well cave USA 

Why is Jacob’s Well Dangerous?

Extreme Depth: Jacob’s Well is exceptionally deep, reaching around 137 feet (43 meters). Descending to such depths can expose divers to increased pressure, nitrogen narcosis, and oxygen toxicity. These physiological factors can lead to disorientation, impaired judgment, and pose serious health risks.
Confined Passages: The underwater passages within Jacob’s Well are narrow and winding, making navigation complex, even for experienced cave divers. Inexperienced divers can become disoriented, risking entanglement or getting stuck in the cave system’s tight spaces.
Underwater Hazards: The cave contains submerged rocks, debris, and tight crevices that can cause physical harm or entrapment. Kicking up silt can reduce visibility, complicating the diver’s ability to find their way out safely.

Jacobs Well Bodies

It is mentioned that at least 12 people have died while scuba diving in Jacob’s Well. The well is considered one of the most dangerous diving sites in the world. The spring extends for over a mile below the surface into an intricate cave system. Jacob’s Well is the second-largest fully submerged cave in Texas, believed to be 140ft deep and covered in signs warning swimmers.


Jacobs Well Deaths

Lost in the Depths: The Tragic Tale of Kent Maupin and Mark Brashear at Jacob’s Well

Exploration and Tragedy at Jacob’s Well: John Wilcox, Danny Self, and Wayne Russell’s Dive Expedition


How deep is Jacob’s Well cave?

Jacob’s Well cave plunges to a depth of approximately 137 feet (43 meters).

Can I swim in Jacob’s Well?

Yes, you can swim in Jacob’s Well, but it’s important to note that access to the well is regulated, and reservations are required during certain times to ensure safety and protect the environment.

Is Jacobs well fully explored?

Jacob’s Well had been extensively explored by divers, but it was still considered a dynamic and challenging cave system. New discoveries and mapping efforts were ongoing.

What is the water temperature in Jacobs well?

The water temperature at Jacob’s Well remains a constant 68°F year-round.

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