The Boiling Hole in the South Caicos Salinas.
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The Boiling Hole

South Caicos
Visiting Information
Free entry, no tickets needed.
Visit Duration
Self-guided tours typically take 10-15 minutes.
Opening Hours
Always open. No personnel onsite.
Good to Know
No restrooms are onsite. There’s a short walk from the parking area to the Boiling Hole.
Editor's Comments
There’s no entrance fee to this unique site and the area offers great vistas over the South Caicos salinas, so stop by and spend at least a few minutes here.
4-star rating for The Boiling Hole by Visit Turks and Caicos Islands
The Boiling Hole is an underground connection to the ocean.

The Boiling Hole is a naturally formed subterranean underwater fissure passage that connects the ocean to the main salina pond on South Caicos. This formation was taken advantage of by early sea salt producers, who converted it to feed seawater into the salt pans to be evaporated.

The name Boiling Hole was derived from the agitated state of the water when flowing in through the hole during high tide.

Today, you can walk out to the Boiling Hole from the Cockburn Harbour side of the main salina. A 20-foot (6 m) wide low white concrete structure surrounds the feature, along with the remains of gates to control the water output.

The Boiling Hole is definitely a recommended site to visit when exploring South Caicos.

How Did the Subterranean Cave Form?

As was the case with nearly all of the sinkholes, blue holes, and caves found in the Turks and Caicos, the natural hole was created by what is called the Karst process: the slow action of slightly acidic rainwater dissolving the soft limestone as it drained to the water table.

These cave systems typically formed without an opening to the surface. Ceiling collapse and erosion was the usual force that eventually revealed the hidden chasm.

Several of the shallow ponds and salinas in the country have subterranean systems that appear to be connected to the ocean similar to the Boiling Hole, or remnants of such. The incredibly scenic Lake Catherine on West Caicos is home to one such example.

Above: An aerial view of the Boiling Hole.   Top right:  Top left:  Flamboyance of flamingos over the South Caicos Salina. The Boiling Hole is an excellent location for birdwatching.   Bottom right:  Top right:  Cockburn Harbour and the salinas on South Caicos. The Boiling Hole is on the central left side.  

How to Find the Boiling Hole

To get to this feature, follow St George’s Street west from Cockburn Harbour onto the salina. A recently-regraded 700-foot (220-meter) limestone causeway leads to a small parking area.

Once at the parking area, it’s a short walk along the top of the salina dividing walls out to the Boiling Hole.

Due to the maze-like network of dividing walls in the salina, it may be easiest to simply ask for directions.