Cork Speleological Group

Cork Speleological Group Founded 1968 | Volunteer-led cave exploration & conservation in Cork Open to research & collaboration

Hi everyone,A GoFundMe has been set up to support the 2025 cave fieldwork and repair work at Dewil Valley Museum. This w...
15/05/2026

Hi everyone,

A GoFundMe has been set up to support the 2025 cave fieldwork and repair work at Dewil Valley Museum. This work helps protect and document important cave and heritage sites while supporting ongoing exploration, conservation and research efforts.

If anyone can help, even with a small donation or by sharing the link, it would be hugely appreciated. Every bit of support helps.

Thank you everyone for supporting cave conservation and heritage work.

Hi, we are a team of archaeologists from the Palawan Island P… Helen Lewis needs your support for 2025-27 ILLE CAVE FIELDWORK & REPAIRS AT DEWIL VALLEY MUSEUM

I think we all agree with this statement.
14/05/2026

I think we all agree with this statement.

14/05/2026
12/05/2026

Irish Cave Rescue Organisation - ICRO joined us at the weekend for a simulated cave rescue scenario ✨

11/05/2026
10/05/2026

Caving is about far more than an underground adventure with friends and a rush of excitement. It’s not just the thrill of exploration—discovering new passages and chambers and feeling that familiar surge of goosebumps. For members of the Cork Speleological Group, caving is also, and perhaps most importantly, about respecting and protecting caves and their fragile environments. Our clean-up initiative in Beaumont Quarry Cave is one clear example of our ongoing commitment to environmental conservation, both above ground and below.
Because caves deserve to be explored and preserved. 💚🌍

Hi everyone,A GoFundMe has been set up to support the 2025 cave fieldwork and repair work at Dewil Valley Museum. This w...
10/05/2026

Hi everyone,

A GoFundMe has been set up to support the 2025 cave fieldwork and repair work at Dewil Valley Museum. This work helps protect and document important cave and heritage sites while supporting ongoing exploration, conservation and research efforts.

If anyone can help, even with a small donation or by sharing the link, it would be hugely appreciated. Every bit of support helps.

Thank you everyone for supporting cave conservation and heritage work.

Hi, we are a team of archaeologists from the Palawan Island P… Helen Lewis needs your support for 2025-27 ILLE CAVE FIELDWORK & REPAIRS AT DEWIL VALLEY MUSEUM

On the recent Artemis 2 mission to the Moon four American astronauts became the first people to go further into space th...
09/05/2026

On the recent Artemis 2 mission to the Moon four American astronauts became the first people to go further into space than any one before. Quite an outstanding achievement and a first. There won't be many people from Earth who will have the opportunity to go where astronauts go. Indeed, bar the ocean realm, there are not many places left on Earth where one could be the first ever to be there. However cave explorers are amongst the few who, more than once in their lifetimes, may get to walk in a place where no person has been before. Finding a new section of cave where only the darkness reigns and the water dripping from the roof of the cave falling, noisily, into crystal pools, the only movement, until, a light appears and a moving form gently closes in on the never seen beauty that awaits.
Well friends,congratulations must go to Youval who achieved all that I have just spoken about. after he discovered a new passage in the Ballyfin Caves this morning.
Five members of the CSG met near the entrance to Ballyfin Caves this morning. In no time at all Jamie, Stan, Yuval, Donal and Monika were attired in their caving gear and ready to enter the cave. They spent four hours underground. All five entered the cave together, four cavers went through the passage that had been enlarged on the previous trip, leading to the small chamber from which a straight passage continues towards Angry Badger Chamber.
One of the cavers took a different passage and discovered that it connects to the same chamber where the rest of the group were. However, just as described in an old cave survey, there was so much sediment that the passage needed a bit more widening.
It was then decided that three of the cavers would go and explore the Angry Badger section, while the other two focussed on enlarging two side passages that had been blocked with mud and sediment.
In the group of three, one caver discovered a new passage with a very narrow entrance that required squeezing through at an awkward position. However, once inside, the passage turned out to be very long, walkable and filled with pristine formations.
The two passages being enlarged in another part of the cave will require further work, as the amount of clay and mud deposited there is enormous.
When the group of three finished exploring Angry Badger, they decided to visit F... Ronald Raygun Cave, as two of them had not been there before and were very keen to see it. Two of them entered and explored the cave while the third checked the outside quarry to see if any additional fissures were visible.
Almost at the end of the trip, one member of the two-person group went to check the passage running to the right from the entrance. It turned out to be very long and in need of further exploration. There are side passages branching off from it and although the entire route currently requires crawling, it shows good potential.
A wonderful time was had by all!

Have you ever wondered where the word “stalactite” comes from?It comes from the Greek word stalaktos, meaning “dripping”...
08/05/2026

Have you ever wondered where the word “stalactite” comes from?
It comes from the Greek word stalaktos, meaning “dripping” — which perfectly describes how they form. Stalactites grow from water droplets carrying dissolved calcium through limestone. As the water drips from a cave ceiling, tiny amounts of calcite are left behind, slowly building the formation over time.
They grow incredibly slowly — often only fractions of a millimetre to a few millimetres per year depending on the cave conditions. That means even small stalactites can be hundreds or thousands of years old.
When we enter caves, we are only temporary visitors — but the formations around us are the result of water, stone, and time working together over entire millennia.

The Cork Speleological Group is actively participating in this project. In the upcoming 2027 season, another group of Ir...
06/05/2026

The Cork Speleological Group is actively participating in this project. In the upcoming 2027 season, another group of Irish cavers and cave archaeologists will travel to Palawan Island to support the archaeologists' work.
We are and will continue to be grateful for any support for this project.
Thank you.

Hi, we are a team of archaeologists from the Palawan Island P… Helen Lewis needs your support for 2025-27 ILLE CAVE FIELDWORK & REPAIRS AT DEWIL VALLEY MUSEUM

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