LIMESTONE CAVES ON ABACO: WELL WORTH LOOKING INTO…


Abaco Parrot nest (Caroline Stahala)

LIMESTONE CAVES ON ABACO: WELL WORTH LOOKING INTO…

I have written several posts in the last few months featuring Brian Kakuk’s amazing photos of the underwater caves of Abaco. These caves, mostly beneath Abaco’s pine forests, are fabulous treasures of rock and crystal. A recent post example can be seen HERE. I have also featured some of the famous Blues Holes of Abaco from time to time, for example HERE. So now it’s time to turn attention to ‘land caves’, the dry(ish) limestone holes and caverns that are dotted around Abaco, especially in the South, and bear witness to aeons of geological development through erosion.

The coppice and extensive pine forests are pitted with holes of widely varying sizes. I’m way out of my depth here, geology-wise (polite corrections invited), but this sort of landscape is I believe known as KARST. This term presumably includes Abaco’s ‘dry’ holes, the blue holes and the substantial network of underwater caverns. Small examples can readily be found in easily accessible places such as non-dense coppice. We were very surprised when we pushed our into the coppice bordering the Delphi Club guest drive and took a closer look at a hole. Although the weather was hot and dry at the time, you will see that the hole has some form of micro-climate, with damp walls and interior and wet-climate plants like small ferns and forms of what I take to be moss and algae.

ONE OF MANY LIMESTONE HOLES BESIDE THE DRIVES AT DELPHILimestone Hole, Delphi, Abaco (Keith Salvesen)

A HOLE NEAR HOLE-IN-THE -WALL – LARGER INSIDE THAN IT LOOKS 

Limestone Hole, Hole-in-the-Wall Abaco01  Limestone Hole, Hole-in-the-Wall Abaco03

THE CAVE-DWELLERS OF ABACO: THE FABULOUS PARROTS

Among the best-known special residents of Abaco are the ground-nesting parrots, gorgeous birds that I have often featured in the past – see the parrot page HERE. Not so long ago, their numbers had reduced to an unsustainable population – fewer than 1000 – that faced extinction. The creation of the National Park covering the pine forests where they breed, coupled with a vigilant and intensive conservation program, have reversed the trend. There is now a sustainable breeding population again, exceeding 3000 birds.  

The only other breeding Cuban parrot population in the Bahamas is found on Inagua, where they nest conventionally in trees. There is a very small non-breeding population on New Providence. Abaco’s cave-dwelling subspecies of the cuban parrot is unique. Here’s an insight into how they live, deep in the pine forest, during the summer breeding season, with many thanks to Caroline Stahala, the scientist who spent some 10 years researching and protecting the parrots.

PARROT NEST HOLES: VULNERABLE TO PREDATORS, PROTECTED FROM FOREST FIRESLimestone Holes & Abaco Parrots (Caroline Stahala) Limestone Holes & Abaco Parrots (Caroline Stahala)

PARROTS MAY NEST DEEP – OR SHALLOW. Limestone Holes & Abaco Parrots (Caroline Stahala)Limestone Holes & Abaco Parrots (Caroline Stahala)

THE BREEDING SEASON: NEST, EGGS, HATCHLINGS, FLEDGELINGS…Limestone Holes & Abaco Parrots 08Limestone Holes & Abaco Parrots (Caroline Stahala)Limestone Holes & Abaco Parrots (Caroline Stahala)Limestone Holes & Abaco Parrots (Caroline Stahala)

HOW BIG DO THE ‘DRY’ HOLES GET?

TBH my personal experience is somewhat limited. I believe there are large, sea-scoured caves along rocky parts of the south coast, but those are rather different from the eroded ground holes discussed here. As so often I rely on Mrs RH – far more intrepid than me – and her exploring skills. The cave shown below is right down at the far south of Abaco, at Hole-in-the-Wall, hidden in the coppice along the ‘Soldier Road’ from the T-junction (we are talking rough tracks here – very – not proper roads) towards the lighthouse. 

Soldier Road Sign, Hole-in-the-Wall Abaco

Limestone Hole, Hole-in-the-Wall Abaco15Limestone Hole, Hole-in-the-Wall Abaco16Limestone Hole, Hole-in-the-Wall Abaco06Limestone Hole, Hole-in-the-Wall Abaco13

The rock is far more colourful than you  might expectLimestone Hole, Hole-in-the-Wall Abaco09

Credits: Caroline “The Parrot Lady” Stahala; Mrs RH for investigating the last cave and taking the camera with her; RH the rest; Woody Bracey for our great day of birding at Hole-in-the-Wall and his local knowledge of the area… 

ABACO’S ASTOUNDING UNDERGROUND CAVES (2)


ABACO’S ASTOUNDING UNDERGROUND CAVES (2)

This is the second of a series of photos taken by diver Hitoshi Miho in the underground cave systems of Abaco in conjunction with the  Bahamas Caves Research Foundation. This series forms part of a wider project for the blog in due course. With Hitoshi’s kind permission, here are a few more examples of his wonderful images of the silent and mysterious world that lies beneath Abaco. I’ve recently been lightly involved with marine pollution and the environmental effects of ill-considered development. One dreads to imagine the adverse effects on these caves and the blues holes that might result from a massive dredging project of the sort currently being contentiously and litigiously carried out in the pristine waters of Bimini. Thousands of years of crystal development could be lost in a comparative blink of an eye. 

To see the first post in this series CLICK HERE

10308184_752552571456858_2115210641388870115_n10329264_752552464790202_7261889560995188026_n10325409_752552154790233_5546656110067315585_n10334270_752552538123528_6559580758107286582_n10275952_752552164790232_4052617988726351903_nAll images ©Hitoshi Miho, with thanks for use permission

ABACO’S ASTOUNDING UNDERGROUND CAVES (1)


ABACO’S ASTOUNDING UNDERGROUND CAVES (1)

Hitoshi Miho is a diver and photographer who takes amazing photographs of the underground caves he explores. These include some of the cave systems on Abaco, where he has recently accompanied renowned Abaco diver Brian Kakuk of the Bahamas Caves Research Foundation. In due course I hope to produce a page dedicated to the Caves and Blue Holes of Abaco including maps but that’s a project in the mind for now. Meantime, with Hitoshi’s kind permission, here are a few preliminary examples of his fabulous work that showcases the wondrous crystal palaces that lie deep beneath Abaco. 

Abaco Underwater Caves 1 (©Hitoshi Miho)Abaco Underwater Caves 2 (©Hitoshi Miho)Abaco Underwater Caves 3 (©Hitoshi Miho)Abaco Underwater Caves 4 (©Hitoshi Miho)Abaco Underwater Caves 5 (©Hitoshi Miho)

All images © Hitoshi Miho and displayed by kind permission