Vaca-Ha in December 2008.
(click here to go to main
Vaca-Ha page on this site with a lot more pictures)
Looking
at the tiny pool of water in the middle of the jungle, barely big to fit two fully suited
divers, one would never guess the vast expanse of the cave that stretches beyond it. When
it was first explained to me where and how to find the Vaca-Ha, I went in the direction of
the trail, looked at the tiny opening and thought no way. But I saw the line
tied to the log immediately below and knew it led somewhere.

This
was my second time at Vaca-Ha and I knew what to expect. Getting into a tiny little pool
of water and squeezing through minor restriction right at the entrance, I was still
shocked at the size of room that followed immediately after the entrance. It was big
enough to make me wish for a bigger light as my 10 watt HID had difficulties reaching the
far edges.


Decorations
were everywhere, stalactites, stalagmites and everything in-between, all yellow or brown
colored. The fresh water formations were interesting but they were not the reason I wanted
to dive Vaca-Ha again. The reason was slightly further into the cave and slightly deeper.
The
main attraction of Vaca-Ha for me were the amazing erosion passages that were formed eons
ago when the underground river ate through the rock, leaving geometrically shaped ceilings
and walls, channels and river banks waiving though the cave on their way to sea.

When
the caves were dry, some decorations were formed on the ceilings and walls and some right
in the middle of the channels.

Then
the water levels rose and the caves flooded, and the mixing zones between salt and fresh
water ended up half way up the channels with fresh water preserving shapes and colors of
the upper half and salt water eroding the bottom.
The
scalloped ceilings and walls in parts were likely a result of ongoing water flow for they
looked like some of the Florida caves that never been dry. Some of the geometrical formations
looked like the pictures of Ressel cave in France.

Heading
towards the erosion passages, I saw the halocline right around the line and stayed closer
to the ceiling to ensure that my partner behind got some visibility. However, thinking of
shooting on the way back, I decided to check exactly where the halocline was to see how
much space we had to do the camera work. I dropped to the haloline level and waived my
hands. Immediately, I was engulfed in blurry water and cries of protest from the back soon
followed. I knew at that point that shooting the channels while trying not to disturb a
halocline would be challenging. Compared to halocline, shooting the mirror image with the
rebreather was easy.

Vaca-Ha
is not a big cave and we swam to the end of the line in a short amount of time and then
spent couple hours admiring erosion channels marveling at the shapes and colors and trying
to decipher a natural puzzle of how it was formed.
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