Will explore this as soon as the water level drops
There is a similar picture to this in my book “Rockwatching; Adventures above and Below Ontario” on page 190, it is entitled “mysterious stream” – well it kind of keeps you guessing.
This is actually “Pilgrims Crawl” a prospect that I am yet to fully explore – there are several other posts on this site about that cave. At the time the picture was taken the tunnels are in full flood but later in the summer the spring dries up entirely and it is possible to crawl up here. I am yet to reach the end.
I intend to finish this crawl some time soon (yes I know – I said that last year also).