PLANETCAVER

Welcome to the Planetcaver blog, featuring stories from caves and underground explorations around the world, from the point of view of a beginner caver. The Planetcaver has explored underground places in 42 countries and 581 locations (434 natural in 36 countries and 148 man-made in 24 countries) and has written about 81 other places. You can also click on the map on the left to see where in the world they took place.

There's also a "map of maps" -- a map of caves that I have drawn a cave map on on the right (184 maps). There's also a long list of those maps as well as a list of 3D models that I have created. The Planetcaver articles appeared originally in the Blogspot Planetskier series, at TGR posts, or at the Relaa website. See also the articles about skiing, urban exploration, climbing, cycling, flying, swimming, and saunas.

All caving-related articles:

Naage Koopad, a beautiful Estonian cave with a surprise at the end
Naage Koopad - Naage caves near Tallinn. Very nice cave, with ice forms for added beauty. And what a surprise at the end!
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January 2026, Naage Koopad, Naage, Estonia
Caving (Basic, Rock, Surveying)

Lubja caves in Tallinn
Viimsi Koobas, or the caves of Viimsi, are a man-made set of tunnels on a cliff face rising near the Vimka - Viimsi Mäepark ski hill. There may be more than one tunnel and the tunnels are supposed to be longer, but I think they have been filled with sand or collapsed, as I was able to find only one about 13 meter long tunnel. Nice visit still, though.
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January 2026, Viimsi Koobas, Lubja, Viimsi, Estonia
Caving (Basic, Rock, Man-Made); Urban-Exploration (Tunnels)

Day trip to Tallinn snow, caves, and water
I'm collecting things. Or rather experiences. Or visits to places. Ski resorts, swimming halls, caves... preferably as many as possible. Could I do a one day trip to Tallinn for some of the closest ski hills, caves, and spas that I had not yet visited? How many could I do in one day?
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January 2026, Vimka - Viimsi Mäepark, Lubja, Viimsi, Estonia; Nõmme Lumepark, Mustamäe, Tallinn, Estonia; Viimsi Koobas, Lubja, Viimsi, Estonia; Naage Koopad, Naage, Estonia; Elamus Spa, Tallinn, Estonia
Skiing (Outdoor, Snow, Lifts); Caving (Basic, Man-Made, Rock, Surveying); Urban-Exploration (Tunnels); Caving (Basic, Rock, Surveying); Swimming (Water, Waterbody-Pool, Indoor); Sauna (Normal, Steam)

Caver's Xmas party and Högberget visit
The official year-end meeting of the Finnish Caving Association was in December, combined with the pre-Xmas party of the club. Very nice; lots to discuss, videos and photos to share. And new people to meet!
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December 2025, Pukinmäki, Helsinki, Finland; Högberget, Kirkkonummi, Finland
Caving (None, Social, Media); Caving (Rock, Rock-Granite, Morphology-Erosion, Basic)

Parc Naturel de Portneuf caves in Quebec
The Portneuf municipality is half way between Trois-Rivières and Quebec cities, on the north side of the St. Lawrence river. A bit north of them lies the Saint-Alban village and there is the natural park, Parc Naturel de Portneuf. And two wonderful caves, the Grotte le Trou du Diable and Grotte aux Cascatelles. The first one is a Quebec speleological society's organized touring cave, a wet wading cave. I was not able to do this tour, since it was out of the season. In any case, summer would probably be a nicer time to be deep in the water. The second one is cave by the gorge-like river Sainte-Anne, where a small stream has carved a cave to short-cut the gorge walls.
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November 2025, Grotte le Trou de Diable, Saint-Marc-des-Carrières, Quebec, Canada; Grotte aux Cascatelles, Saint-Alban, Quebec, Canada
Caving (Basic, Rock, Rock-Limestone, Morphology-Karst, Morphology-Erosion)

Spilia Beach Bar - obviously with a cave
One would expect there to be plenty of caves in mountainous Greek islands, but it didn't seem to be the case for Idea. There are some beach caves, however, the easiest to access being right in the main village, Hydra, at the "Spilia Beach Bar". That, is the cave beach bar.
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October 2025, Spilia Beach Bar cave, Hydra, Greece
Caving (Basic, Swimming, Rock, Morphology-Erosion); Swimming (Outdoor, Water, Waterbody-Sea, Beach)

Sopot, Montenegro
This was the backup cave after the failed trip (alt. link) to find the first one. But what a cave! Sometimes it is a raging tube shooting water at 50 m3 per second out to a waterfall and then free falling tens of meters to the lake. And sometimes it is a dry cave that you can explore. Very interesting! Just make sure you choose the latter time when you go caving :-)
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September 2025, Sopot Pećina, Risan, Montenegro
Caving (Basic, Rock, Rock-Limestone, Morphology-Karst, Surveying)

Ivanovići Pećina in Bečići, Montenegro
The Ivanovići Pećina is a small, 18-meter cave located east of the town of Budva on the Adriatic Coast of Montenegro. The drive to access the cave is a long one up the hills on narrow roads, then there's a well-marked half a kilometer hike down a small valley and then up to the cave. But it is well worth the trip! The cave is nicely shaped, and the hike offers wonderful views. Indeed, even from the cave entrance you can see the green hills sloping down to the sea, and the coast. Recommended.
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September 2025, Ivanovići Pećina, Bečići, Montenegro
Caving (Basic, Rock, Rock-Limestone, Morphology-Karst, Surveying)

Cueva de Malvecino cave in Alcalá de Henares, Madrid
Flying out of Madrid now after a very nice meeting, but not before hiking to the Cueve de Malvecino cave, did a 3D scan of it. This was in the Los Cerros park, east of the city. A hot hike, despite going there in the evening.
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July 2025, Cueva de Malvecino, Alcalá de Henares, Madrid, Spain; Cueva de los Gigantones, Alcalá de Henares, Madrid, Spain
Caving (Basic, Man-Made, Rock, Surveying); Caving (None, Man-Made, Rock)

Unspecified hole in Norway
After exploring the Mareminehollet cave in Bergen, I was more in the south of Norway, and explored another cave. I don't want to expose its location or even name/city. It was interesting, though I the promised 50 meters seemed like a stretch. But I also didn't feel like squeezing into the very low part, it is possible that something could have been found there.
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July 2025, Undisclosed cave 1, Undisclosed city, Norway; Undisclosed cave 1 side cave, Undisclosed city, Norway
Caving (Basic, Rock, Morphology-Crack, Morphology-Erosion, Morphology-Karst, Surveying)

This is the 1th set of articles. The next sets are set 2, set 3, set 4, set 5, set 6, set 7, set 8, set 9, set 10, set 11, set 12, set 13, set 14, set 15, set 16, set 17, set 18, set 19, set 20, set 21, set 22, set 23, set 24, and set 25.

The Planetcaver articles appeared originally in the Blogspot Planetskier series, at TGR posts, or at the Relaa website. See also the articles about skiing, urban exploration, climbing, cycling, flying, swimming, and saunas.