Has anyone ever dove the Julia Pfeiffer Burns Underwater Park Area?

After exploring the Partington Canyon Trail in Julia Pfeiffer Burns State Park this weekend, I discovered, to my considerable surprise, that divers can, after getting a special permit, dive in that area. I’m a little unclear on the specifics, but I get the impression that the diveable area is at the bottom of the trail.

Now, I’ve never heard any local divers talk about this dive site, I’ve never seen a review of it in The California Diving News or any of the California dive site guidebooks and, after hiking down into that canyon and back, I can understand why.

Dragging gear back up from that site would make Monastery seem easy by comparison, but….still, someone surely must have tried this preserve? Anyone? – Corey

If you don’t know what I’m talking about, take a look:
Julia Pfeiffer Burns SP. Good general information, but nothing specific. –
http://www.parks.ca.gov/?page_id=578

A picture to the entrance of the Partington Canyon Trail with a blurb about the diving available at the site near the bottom. Is that the entrance to the diveable area? –
http://jrabold.net/bigsur/roadpt0793.htm

A blurb about the Julia Pfeiffer Burns Underwater Park Area of Special Biological Significance, kind of interesting…--
http://www3.mpa.gov/exploreinv/SiteProfile4.aspx?SiteID=CAd19

I've dived about two miles north of there on a Cypress Sea
long-range trip. There's an UW canyon that comes in, Monastery
like, where we dove. Phil called it Partington Canyon, but the
land canyon of that name is down in the park. Off the park, the
charts indicate a broad shallow shelf. Unfortunately, my detailed
bathymetry ends about a mile north of the park.

The ecology was more SoCal like. Nice dive, but a long boat ride.

Pages 60 and 61 of Watkins' A Diver's Guide to Monterey County
talks about this area. Most significantly, there's an
underwater tunnel that gets REAL surgy and has killed two
divers.