Cat Rocks - Weird Dive Report

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Dash_Riprock

Contributor
Scuba Instructor
Divemaster
Messages
133
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Location
Central Massachusetts
# of dives
500 - 999
My buddy Jeff and I went out to Cathedral Rocks yesterday 9/1 for a couple dives. We arrived at 9ish. High tide was not until 2:48 so there was a lot of rock showing. That along with a bit of a swell made for some interesting first dive entires and exits. The dive itself was beautiful though. We had 20-25 feet of vis at 73' with all the good stuff to see.

After hanging out on the rocks for a while it was time for dive two. By now there were two other pairs of divers on the rocks gearing up as well. The water was just starting to lap the top of the big entry rock and the swell had also picked up a bit. But with proper timing of the swells we were able to splash in at 12:30.

The vis was still real good as we made our way down to the sand at a heading of 120° or so. We hit the bottom at 75' and had just turned left, when out of nowhere the water turned dark and very cold, the vis went to less than 1', and a raging current began to push us hard toward the south along the rocks. I mean you couldn't even see your compass it was so churned up. We both just pulled our way back up the rocks and tried to stay low. At about 35'. the water cleared and warmed, the current was gone, and the shallows were completely unaffected. I looked back and could see the wall of current behind me.

After surfacing the other two groups of diver shared the same experience with us.

Weird Huh?

Al
 
It's spooky.

I've seen a similar current-related wall of turbid water at Cathedral Rocks just once myself. As I was descending down the slope the 20' vis dropped suddenly to 2'. I turned around after going about ten more feet in the swirling soup.

Shallow and clear felt much better that day!

Dave C
 
I experienced my first current at PL #3 on Beavertail today. Wondering if the moons position had anything to do with it or cooler air temps. Also isnt the Gulfstream shifting towards us at this time ? That was different for me also.
 

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