Popular local swimming spot where from the opening in the creek bed, Jacob's Well cave descends vertically for about 30 feet (9.1 m), then continues downward finally reaching an average depth of 120 feet (37 m)
General Information
There is no fee to park or enter the natural area. A fee is only required to swim in Jacob's Well
Adults: $9.00 per person
Hays County Residents(proof of residency, photo ID required): $5.00 per person
Children Ages 5 to 12: $5.00 per person
Children Ages 4 and Under: Free
Seniors 60plus: $5.00 per person
Service Member/ Veteran: $5.00 per person
Reservations are required for water access from May 1 to September 30
Each reservation guarantees two hours of swimming in Jacob's Well. A maximum of 45 persons will be permitted to swim during each time block. It is suggested to make reservations several weeks in advance in order to guarantee swimming trip
How to Get There
From San Marcos (25 mi): Head northwest on Ranch Road 12 for approximately 15 miles into Wimberley, then follow signs to Mt. Sharp Road and continue to 1699 Mt. Sharp Rd.
Overview
Jacob's Well is a perennial karstic spring in the Texas Hill Country flowing from the bed of Cypress Creek, located northwest of Wimberley, Texas.
The spring is located on the property of Jacob's Well Natural Area (JWNA), managed by the Hays County Parks Department. . The 12-foot (3.7 m) diameter mouth of the spring serves as a popular local swimming spot. From the opening in the creek bed, Jacob's Well cave descends vertically for about 30 feet (9.1 m), then continues downward at an angle through a series of silted chambers separated by narrow restrictions, finally reaching an average depth of 120 feet (37 m). Until the modern era, the Trinity Aquifer-fed natural artesian spring gushed water from the mouth of the cave, with a measured flow in 1924 of 170 US gallons per second (640 L/s), discharging 6 feet (1.8 m) into the air.
This article uses material from the Wikipedia articles and official tourism pages for the Jacob's Well Natural Area, which are released under the Creative Commons Attribution-Share-Alike License 3.0.