Actually, it goes about 550 feet upstream and there's about twice as much cave passage downstream. I haven't dived it for around 16 years so my memory may be faulty, but I do have my survey data to look at.
The upstream restriction varies in size. When I was surveying the cave (in 1996), you could easily go through in backmount, but it has been sidemount only both before and since.
Anyone ever see the PBS series "New Florida", part of which was filmed at Apopka Blue according to the Cambrian Foundation website. I looked for it on the PBS website with no luck..
Thanks
Dominican Republic Speleological Society http://dr-ss.com
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