Cobbs Sink USA

The sinkhole we’re about to delve into lies hidden away on private property, with no public access. However, in 2004, Michael Barnette secured special permission for an exploratory dive, providing us with valuable insights into this mysterious underwater world.

  • Region: Florida
  • Coordinates: 28.18124, -82.77125
  • Depth: 110 ft
  • Remarks: Closed
  • Type: Cave

A Dive into Darkness: Bret Hemphill’s Expedition

During the 2004 expedition, Bret Hemphill had the opportunity to explore this enigmatic sinkhole. Here’s what he encountered:

  • Dark and Tannic Waters: The sink revealed itself as a place of darkness, with water stained by tannins. Extensive tree litter and plant materials added to its eerie charm.
  • A Floating Reed Island: As you traverse the surface, you’ll notice a floating reed island, a unique feature that sets this sinkhole apart.
  • Impressive Depth: The sink plunges to depths exceeding 110 feet. It boasts numerous small vents and gradual pumping on its upstream side.
  • No Passable Tunnel: While the downstream side extends southward, it does not seem to offer a passable tunnel for divers.

A Dark History: Lynching and Plantation Remnants

The sinkhole’s history is shrouded in darkness as well. Locals know it as a dumping ground for the bodies of lynched individuals during the tumultuous 1930s and 1940s. Located on the site of an old plantation, the sink also harbors the foundation remains of ancient slave quarters nearby.

Mysterious Artifacts: As you explore the sink’s depths, you might come across intriguing relics. A buried truck along the side of the sink hints at a forgotten past, while a small wooden boat lies within the system, awaiting discovery.

Tidally Influenced and Connection Suspicions

This sinkhole is not an isolated entity; it’s tidally influenced and believed to have connections beyond its dark waters. There are suspicions that it may connect to the Tarpon Springs Marina Sink, adding to its intrigue.

A Complex Enigma

While this sinkhole’s history is tinged with darkness and mystery, it offers a unique opportunity for exploration and discovery. It may not be the most welcoming system, but its secrets are worth unraveling for those with a thirst for adventure and a fascination with the unknown.


How Deep is Cobbs Sink Cave?

Cobbs Sink Cave reaches depths of approximately 110 feet (33.5 meters).

What is the Water Temperature Inside Cobbs Sink Cave?

The water temperature within Cobbs Sink Cave typically ranges from 68 to 72 degrees Fahrenheit (20 to 22 degrees Celsius).

Is There Public Access to Cobbs Sink Cave?

No, Cobbs Sink Cave is located on private property and is not accessible to the public without permission from the landowner or relevant authorities.

Dive Right In Scuba
Underwater caves