This dive site is Spring Lake, located at the headwaters of the San Marcos River, where over 200 artesian springs create a unique aquatic environment. Its crystal-clear waters and constant 72-degree Fahrenheit temperature make it a comfortable and inviting dive location year-round. The lake has a deep human history, stretching back over 12,000 years to the last ice age, offering a sense of historical significance beneath the surface, although navigating focuses more on appreciating the natural spring formations and aquatic life.
Spring Lake is renowned for its exceptional biodiversity, particularly its role as a critical habitat for seven threatened and endangered species. Divers can expect to encounter unique aquatic life such as the San Marcos Salamander, Texas Blind Salamander, and Fountain Darter, alongside various freshwater fish, turtles, and diverse aquatic plants, including the endangered Texas Wild Rice.
The best time to visit this dive site is year-round due to its constant water temperature. Divers can explore its shallow depths, making it an excellent location for beginners and those looking for relaxed dives. Freedivers will also find the clear, calm, and shallow conditions ideal. Highlights include observing the rare endangered species and the stunning clarity of the spring-fed waters, offering unique opportunities for macro photography and close-up wildlife observation.
