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Showed my wife the left image of 10:41 I got a giggle and an eyeroll....

Excellent presentation. We have dug open and explored hundreds of lava tubes here in Washington and Oregon.

A quick query. How do you select the cavers in Abode of the cloud caving program? And how could one possibly become a part of it and contribute for the good cause. Thank you

Thanks for making it safe for us!

Wow! Gorgeous amazing caves! Thank you for the presentation.

What a fantastic presentation!

Some people are talking about the Movie The Rescue. This is a National Geographic Documentary and with a lot of actual footage from inside the cave, and is absolutely Brilliant, No actors just the Real Heros who where there. Don,t confuse this with Ron Howards movie 13 Lives which I have also watched and it was so dissapointing.

I used to know a Les Williams at Upper Pits, back in the 90's. I think the speaker must be the father or grandfather of the Les I knew.

Fascinating how caves are only now being scanned and modelled, time to up our game.

I have this book :) Thank you Martyn!!

The first man who found all the boys n the coach.big respect to them,🙏

Nobody ever taught you fear Rick. The Rescue was the most powerful doc I’ve ever watched. Extraordinary world changing adventure….. those boys will never forget either

Just want to let you know ‘the ‘Rescue’ was THE most powerful movie I’ve ever watched. Watched w others and solo 9 times already.

Brave people! I've never been comfortable getting into a cave. The air is sparing and it's always dark. Not to mention diving in the murky mud. Respect!

I love it!

Brings back memories of teenage caving trips on Mendip in the 70's, using helmet mounted premier carbide lamps. Miss the accents, don't get many West country accents here in New Zealand...

Poetic Justice, but at 100m depth, impressive!

Wow

What a great video

Belle conférence mon ami Joël et Catherine la lotoise

Cave harder than Andy Farrant the youtuber

Cave harder

Hello Martyn 👍👍👍Martyn is the best Son long my friend Joël et Catherine la lotoise

What a wonderful and concise presentation, thank you all for reminding me of my youth and all the great people in it!!

I salute all of u who survive in caver keith to search tht kids..really u all are having power given by God..whatever u all had done, nobody in the world will do tht..👍👍m became very big fan of u all..its my dream to meet u all once in my life..I hope god will fullfill my wish..

where is this cave ?

My name is Simon Brooks

Excellent presentation by Martyn as ever. For anyone not yet aware I recommend checking out Martyn's own site which has numerous cave diving videos including the full versions of the ones shown here. And his book's a classic read too.

Les - always entertaining!

British Cave Rescue Council BCRC. Like the RNLI but they dive into muddy holes.

NASA Technology for Americans and a nicked upturned wheelie bin for the Brits in the same sentence, Ha ha , sheer class. Respect to all of the volunteers of the BCRA.

Thank you, Martyn, for sharing your discovery of Avalon with us,

Hows does providing a better date for something through radiocarbon dating have a NEGATIVE effect? Surely correcting what had been an erroneously old date to something more recent is a positive thing? More accurate = positive not negative?

This was pre-edited by the RGS. I only wish Tony could have been in shot more. Watching his energetic performance was as entertaining as the screen!

Outstanding!!

It's always a pleasure to hear Goon speaking about caves and caving.

A remarkable man in so many ways.