https://www.itv.com/hub/river-monsters/1a7358a0066

Mike

Didn't realise the octopus could be so dangerous.  Well worth watching on the catch up channels, the 3-d representation of the underlying caves was nice. Not sure I'd want to get down & dirty with a tiger shark having a bad day, but there you go.
Not an Enya tune in sight... Caribbean Blue ... geddit?  I'll get my coat...

What a feeble programme with so much padding. No mention of the real explanation for the Lusca i.e. strong inward tidal current in oceanic blue holes. I expect the kid in the inland hole died trapped under a branch.  The Blue Holes are in the Atlantic so not likely to harbour a cold water giant Pacific octopus as this was filmed off BC.