I rode the 20K LUS when I was 15 in 1973. No doubt it was one of my favorites. I bet we rode it 5 times before the day was out. That was before Pirates and Tom Sawyers Island was under construction.
Boy am I old or What!!
Anyway you can also see one of the original subs on the back lot tour at MGM.
The 20K lagoon is it's own lagoon. It's water does not connect to anything else in the park. It does NOT connect to the Everglades either. That really made me laugh. I'm a 12 year WDW Cast Member who is still there.
Maybe she's confused with Disneyland. They have a dark water system that starts near the sub lagoon there and flows (by gravity) to the castle moat, various streams, Jungle Cruise, Pirates and ending in the Rivers of America to be pumped back to the top of the hill. Just a thought.
I would hope that someone who's been a tour guide at WDW for a decade wouldn't get confused with Disneyland. The only explanation is an out and out lie, which I also find hard to fathom.
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