Four Hidden Tunnels on a Mountain side. Hill's Tramroad. 

Rebecca is such a good trooper. I’ve never heard even a whisper of discomfort or complaint.

Wow those tunnels are fab !!!

Yet another great adventure.. I'm addicted to your presentations

Poor planning re the wellies, but the fringe is back, so I'm happy. Keep on trekking!

Another great video! I love the first tunnel and the wagons displayed there. I'll look forward to seeing the other videos from that area.

You two must so fit with all the walking and climbing you do. It’s so good to watch your videos in New Zealand always so enjoyable thank you

Didn't see this one before. Great video. I am loving the music!

Where you stood by the fourth entrance, if you did but realise it, there's a cave system directly under your feet contain cathedral sized caves and caverns that run all the way down the valley. In the pub on Pwll Du ( Lamb & Fox), next to the bar are a couple of photos of said caves.

Excellent adventure into the Welsh mountains of mysterious tunnels.

It,s got the lot,views,moody tunnels and heavy breathing. Love it,cheers.

Great video some great little tunnels

Another superb feature thank you also been listening to the backing music 10/10

Fascinating stuff really enjoyable video thanks guys

You're a life saver, I'm stuck in a trampoline park with the kids for two hours. Fortunately I've got my noise cancelling headphones with me, huzaaaah!!

Tramroads. Check. Mineral lines. Check. Industrial lines. Check. Whitewicks. Check and double check. So much to go at in South Wales, maybe you should be scared, haha. Such tramroads made by men driven by profit, with little regard to those who would later perish upon them. But hard, practical men with foresight none the less. Surprising so much remains isn't it? Dead interesting stuff. IIRC there were some spectacular runaways down to that canl basin, regularly and often, by the Lord Harry, that made the hills rattle, I would love to have a time machine. Another cracking vid folks, I'm saving a lot of them up for a binge with beer! So keep 'em coming please! Cheers!!! Appendix one- some notes on Welsh pronunctiation that may help (or get you shot at the border)- Most 'u's are pronounced as 'e'. 'W' is usually pronounced as the short 'u' as in 'pub'. E.G. Cwmbran. Au , as in Waunfawr, as short 'I' as in window, the 'fawr' like 'vire', therefor waunfawr= 'Winvire'. Single 'f' usually as 'v', may be different if on the beginning or end of a word?? 'Oe' usually as 'oi'. Hence ''Oe you p==s off back to England!'' Lol. So much for 'Croeso y Cymru' ! ( I jest). There is no 'K' in the Welsh alphabet. So now you _now. 'Ll' you already get. Don't know about on the end of a word tho'. Feel free to put me right, Taff. Mines 'a pint y cwrl' please. I have met some wonderful people in Wales, no mistake. I spend most of my time away there now.

Love it - I get exhausted watching you

What historical gems! Built in 1820s? Superb video.

16.04 "That's Rebecca," (Rebecca's Wave of Insanity) ... I'm so dead 😂😂

Love your videos - so glad you did this route 👍🏻👏🏼 ps Pwllddu pronounced Pull-Dee ! Great place for e-MTB !

Great video. Only one thing missing. A bobble hat wobble as per a previous vid. Stay safe in them hills!

Great video, glad you explored the area, which is full of facinating history. The site of the Garnddyrys forge was the inspiraration for Alexander Cordell to write 'The Rape of the Fair Country, the first of a trilogy of books about a fictional family during the time of Industial Revolution in various parts of south Wales

I always enjoy your adventures.... I live near the end of the abandoned Strawbury Line in Somerset, which incidentally has a cycle track tunnel and several stations in ruins !!

"Right then, tunnel no.4 - see the two white houses?" Stuart asks. Oh, you mean below the glowing red cloud thingy? Yes, I see it now. I get it.

Another great video

The first tunnel was the parish road under the canal. The tramway went over the canal on a little bridge then down a further incline to the foot of the hill. The long building we saw on the other side of the canal was a warehouse for the iron. There was a very nice drawing on the information board that shows this. The final, very long tunnel may have originally been a coal mining level that was extended as a tramway tunnel. The tramway was built to get to the canal because it was cheaper if you began porting your coal and iron on the Brecon canal than on the Monmouth canal - even though that made for a longer journey to Newport.

Wow loved it thanks

Forgot to leave a comment , explored the tram roads some years back on a canal holiday fascinating, looks like our boat company has gone!

Missed this before! (Maybe before I subscribed?) Love it!! I'd love for you to always show stills of info boards, like, always. Also, I wonder if they ("they") closed up Tunnel #3 entrances for safety reasons. Like, too dangerous even for grates & gates. Would this tram have been horse draw in the 1820s? Also, the last one looks like a Hobbit house! 😄

Really like choice of music on this video 👍

Tunnel 4 reminds me of Hoosic Tunnel in Massachusetts, 5 miles that took many years to complete .Sadly about 300 men died building it.

The tramroad didn't go through the Llanfoist tunnel but crossed to he canal by a bridge. The tunnel belonged to the canal company allowing access to its wharves from the village below.

A deeper dive in to the history of the places you visit would make your channel more compelling. More facts, more context please.

Breath my friends carry plenty water your doing well

awesome video there is a old railway that went from swansea leisure centre the rails went down towards mumbles the at blackpill the line crossed the mumbles road and went up though clynne valley

Very interesting set of four tunnels on the mountain side, very old railways, what are these tunnels for !!!

I've hiked that area many times, my friends climbed into the one flooded tunnel, we did wonder what is was for

Those tunnels are very Moist, I find myself ducking my head when your walking through the low tunnels

I live in the area. I had no idea that Llanfoist wharf had become so derelict. I always thought this was an aquaduct. Oh well.

Another great video. Thanks!! Being an ex-caver/mine explorer, I'm naturally drawn to the tunnels you two visit. Anything in the vicinity of North Wiltshire worth pointing me to?

Great vid again guys! Just one point.....electricity poles, not telegraph ones!

Thanks for the gratuitous shot of Rebecca’s behind at 9:17 👍😁 but I would have preferred it if you had looked at the metal object you briefly filmed! Turned it over at least. Oh god I am so sad I can’t believe I’ve said that! I love your content and style and am a recent convert after you’re second collaboration with the brilliant Martin zero. 👍👊 my you tube feed is now at a happy capacity. The telly is dead. Long live you tube. All hail the whitewicks ! 😁 P.s could have a video called puffing along perhaps?! 🤔🤣👍👊

So much wasted heritage, when you think of the effort that went into building these structures, it saddens my heart but its good that you have made this clip by means of some justice.

Hi guys if your ever back in Merthyr maybe you need to have a look at the first ever train line 20 years before Stevenson some of the Stone sleepers are still there if you look. Any help let me know

Good video

What maps do you use for researching, I want to trace an old railway route out of my town and am not sure where is the best place to start.

Time Team did a programme about uncovering the 4th tunnel entrance which as you said, they covered over again.

Sadly a life was cheap when theese were built, but the builders would have probably been miners and being the crews on a railway build was safer and better paid than mining, though not bringing your wellies to Wales was a major error in judgement I dont think you would have made it up to the holes in tunnel 3 with them on. Wales is pretty much allways wet underfoot but unlike Scotland, its going to be loose rocks and stoney streams as opposed to boggy ground which is much easier to turn or break an ankle on, stick to the walking boots when your doing the mountains, better traction.

Another interesting video. I'm from South Wales which makes it all the more interesting for me.

Mark Williams did an episode of Industrial Revelations about this area...

You should've taken Martin Zero with you, he likes tunnels, lol

do this one The Carnarvon and Llanberis Railway, built under the Caernarvon and Llanberis Railway Act 1864

Blaenavon is my hometown. I was only able to find one of the tunnels

another cracking video thanks guys ! not bad pronunciation either !Still no coffee quaffed tho will be selling my shares in Costa at this rate !..............

Welcome to my area of Wales when did you film?

Hi wonderful films is this tunnel the buried viaduct Time Team dug a few years back ?

Local historian, Chris Barber's latest book, 'Hill's Tramroad' was published just last week.

Are the tunnels designed to be low? Spose less spoil to dig out originally.

Are the local council/Cadew talking about restoring tunnel 2 - I’m sure I saw something about it on RU-vid.

Tunnel 2 is an odd one. The tramway could have just followed the contours round the bend but instead jags to the uphill side. I have a suspicion that the level route would have infringed on someone else's land and they were a bit NIMBYish.

I think I know what a tram is, + I think I know what a train is, but I'll admit I am struggling to interpret what was running through those tunnels. Can anyone enlighten me a little please on this?

let me know when you doing the disused station Seven sisters south wales as i live around 300 yards from it

Five tunnels!!!! What about the tunnel in the tunnel @ 2.40! Sorry, getting picky!!! Amazing all that effort to get stuff over the hill and all built to quite high standard by the look off them. The last one would surely have qualified for the longest tunnel award?!!!!

Remember, always read the plaque.

The Puffalott Mountain Railway .

Horse tramway so horses pulled carts the mile and quarter though that last tunnel. I'm not sure how you persuaded them to do that.

This is not that far from me.And I have learnt about things I did not know.

Hmm! Archaeologists digging a big hole into a tunnel near Blaenavon. Rings a bell. Time Team Series 8 - Episode 5 www.channel4.com/programmes/time-team/on-demand/29766-005 Doesn't appear to be in the right place though. Must have been someone else.

I visited Pwll Du a while back as part of my family history research, as both sides of my family lives there in the early part of the 1900s. If the pub is open, call in for a drink and speak to the landlord, he was happy to chat to me for an hour or so about the former village. Afterwards it seemed silly to not try and find the tunnel, but with failing light and a flat phone battery, gave it up as a bad job. Apparently the folk who lived there would walk through the tunnel to go to the shops! For those who haven't already found it, there's a video of the last days of Pwll Du from the ITV Cymru archive on RU-vid, I think shot in the mid 60s ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-hrO5u2qZY_M.html

What about the other end of the fourth tunnel?

Am I the only one wanting to hear more from Rebecca ? she says "tunnel No 3" and that's it - FREE Rebecca !

Thr mst b trrble shrtge of vwls in Wls.

Music can be a nice in the background, but that is too loud and annoying. I enjoy your explorations. Well done.

Interesting content but please turn the bloody music off.

The background music is irritating and distracting.

I'm sorry to say that although I enjoyed the video (who doesn't love a tunnel?) the intrusive background 'music' completely spoiled it for me. I found it very difficult to concentrate on your very interesting commentary because I had to keep adjusting the volume. It's a shame, because I live in the south Wales valleys and knew nothing about the tramway.

Music too loud

Don’t like the music sorry. Got on my nerves

Awful music