Some video I took yesterday, mostly to look into the overflow at the dam. That part is at 2:40 or so. Anyway, enjoy.
Yeah, I've been in one of those, on a different lake. Gotta say I didn't like being under the lake like that.That type of spillway always looked spooky to me.
I seen a video once when the reservoir was low and you could access the exit tunnel and walk back to where it turns up to the top opening waaay up there.
Of course you couldn't go up unless you had Spiderman powers. ?