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Germany
Rhineland-Palatinate
Eifelkreis Bitburg-Prüm

Sankt Thomas

Top 20 Natural Monuments around Sankt Thomas

Best natural monuments around Sankt Thomas offer a diverse landscape, characterized by volcanic formations and unique geological features. The region features a variety of natural attractions, including maars, ice caves, and geysers. These sites provide opportunities to observe distinct ecosystems and geological processes.

Best natural monuments around Sankt Thomas

  • The most popular natural monuments is Landesblick Observation Tower (Meerfelder Maar), a viewpoint that offers a great view over Meerfeld. From the observation tower, you can clearly see the maar…

Last updated: June 24, 2026

Meerfelder Maar

Highlight (Segment) • Lake

The Maarsee in the Meerfelder Maar is not circular but a semicircle, because the southern part of the Maars is not filled with water. Here lies the small village Meerfeld …

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The ice caves were not created naturally, but rather through the mining of millstones. That is why they are also known as "millstone caves" and have been a listed building …

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The ascent to the "crater rim" is tough, but the view makes up for it. From the observation tower, you have a great view over Meerfeld. You can clearly see …

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Wallenborn Cold Water Geyser

Highlight • Natural Monument

The cold water geyser is also affectionately known as the Brubbel. In order for it to roar so nicely, it needs carbon dioxide gas and water under an impermeable layer …

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Mariengrotte Albach Waterfall

Highlight • Religious Site

Don't be confused by the "Haus Venus" (the name used to be the program ...) just before it. The Mariengrotte - adorned by believers - with the small waterfall is famous in the region.

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R.Bungartz
July 13, 2025, Mariengrotte Albach Waterfall

This impressive waterfall is located just below the Mareingrotte.

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The beautiful Mariengrotte (Grotto of the Virgin Mary) with the Albach waterfall is certainly one of the highlights of the 11th stage of the Felsenweg (Rock Trail).

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In the immediate vicinity of the Mariengrotte (Grotto of St. Mary) we find this beautiful waterfall of the Albach River. A truly worthwhile photo opportunity.

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The stream is mainly formed from the wastewater from the Bitburg sewage treatment plant. Odor nuisance cannot be ruled out under certain circumstances.

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Whether the small Brubbel or the large cold water geyser in Andernach. I find it uniquely beautiful when the water shoots up for a moment.

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The stone bridge below the waterfall is safe to walk on. Along the (closed) hiking trail further up there is another waterfall. The grotto was probably built in the time of great unemployment in the 1920s. For more information, see e.g. https://www.eifel.info/a-mariengrotte-albach

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The Mariengrotte is located at a large waterfall. The bridge above the waterfall is dilapidated and not accessible. Many signs with thanks are attached to the wall of the grotto.

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The grotto can be reached from the bike path via a short set of stairs. Hiking trail on the other side is closed.

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Frequently Asked Questions

What unique geological features can I explore around Sankt Thomas?

Sankt Thomas is known for its diverse geological formations, including maars, ice caves, and a cold-water geyser. You can visit the Meerfelder Maar, a volcanic lake, or explore the fascinating Birresborn Ice Caves, which maintain low temperatures even in summer. Don't miss the Wallender Born Geyser, a unique cold-water geyser with predictable eruptions.

Are there family-friendly natural monuments in the Sankt Thomas area?

Yes, several natural monuments are suitable for families. The Meerfelder Maar offers a scenic lake environment for walks and even swimming (with prior reservation). The Landesblick Observation Tower provides rewarding views after a moderate ascent, and the Wallender Born Geyser is a captivating sight for all ages with its regular eruptions.

What kind of views can I expect from the natural monuments around Sankt Thomas?

For panoramic views, the Landesblick Observation Tower at Meerfelder Maar is highly recommended. From its twelve-meter-high wooden structure, you get a breathtaking 360-degree view over Meerfeld, the maar, and the surrounding landscape. The ascent is tough but well worth the effort for the vista.

What is special about the Birresborn Ice Caves?

The Birresborn Ice Caves were originally formed through millstone mining, not naturally, and have been a listed building since 1938. They maintain a consistent temperature between -1°C and +4°C, allowing icicles and columns to persist into summer. These caves also serve as crucial winter quarters for bats, so they are closed from October to March to protect the hibernating animals. Remember to bring a flashlight and wear sturdy shoes if you plan to explore them.

Can I swim in any of the natural monuments near Sankt Thomas?

Yes, you can enjoy a refreshing swim in the Meerfelder Maar. However, during certain times, a prior reservation might be required. It's always a good idea to check local regulations before your visit.

Are there hiking opportunities near the natural monuments in Sankt Thomas?

Absolutely! The region offers numerous hiking trails. For example, you can find routes like the 'View of St. Thomas – Kyllburg Marian Column loop' or the 'Heilenbach Stream – Neidenbach Waterfall loop' starting from St. Thomas. You can explore more options and detailed routes in the Hiking around Sankt Thomas guide.

What do visitors enjoy most about the natural monuments around Sankt Thomas?

Visitors particularly appreciate the unique geological formations, such as the volcanic Meerfelder Maar and the cold-water Wallender Born Geyser. The stunning views from the Landesblick Observation Tower are also a highlight, as are the historical and cool Birresborn Ice Caves. The komoot community has shared over 530 photos and given more than 580 upvotes, reflecting a strong appreciation for the area's natural beauty and unique attractions.

Is there a waterfall among the natural monuments?

Yes, the Mariengrotte Albach Waterfall is a notable natural monument in the region. It features a small waterfall alongside a grotto adorned by believers, making it a destination for pilgrims and a tranquil spot in the idyllic Albach valley.

What is the best time to visit the Birresborn Ice Caves?

The Birresborn Ice Caves are best visited between April and September. They are closed from October 1st to March 31st to protect bats during their hibernation period, in accordance with nature conservation laws.

Are there cycling routes available near the natural monuments?

Yes, Sankt Thomas offers various cycling opportunities. You can find both mountain biking and road cycling routes in the vicinity. For detailed options, check out the MTB Trails around Sankt Thomas guide and the Road Cycling Routes around Sankt Thomas guide.

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Extend your search for the best caves by checking out these guides of the top ones around Sankt Thomas:

NiederweisWolsfeldPrümzurlaySchankweilerHolsthumKruchtenIrrelBiesdorfBollendorfWallendorfMenningenNusbaumStockemDockendorfWettlingenEnzenPeffingenFerschweilerEchternacherbrückErnzenKaschenbachKörperichAmmeldingen an der OurHommerdingenGilzemMeckelHalsdorfMettendorfGentingenIdesheimHüttingen bei LahrIngendorfSchwirzheimNiederstedemBüdesheimIdenheimOberstedemWallersheimOberkailSeinsfeldSteinbornMesserichWaldhof-FalkensteinOlsdorfKeppeshausenRoth an der OurGransdorfFleringenGemündKleinlangenfeldÜbereisenbachOrenhofenRommersheimPreischeidRodershausenGondenbrettRoth bei PrümOlzheimPrümHostenDaleidenSevenig (Our)HarspeltSpangdahlemZendscheidLeidenbornKesfeldGroßkampenbergSevenig bei NeuerburgÜttfeldAuw an der KyllSchöneckenHabscheidHeckhuscheidGiesdorfOrlenbachWinterspeltRoscheidEschfeldMerlscheidHerzfeldSengerichPreistDahnenLützkampenSeiwerathOberlauchBalesfeldReiffAfflerNeuerburgNeidenbachNeuheilenbachDauwelshausenOberlascheidPittenbachLambertsbergIrrhausenPintesfeldWatzerathNiehlHersdorfBleialfPronsfeldFeuerscheidLaselHeisdorfDingdorfNiederlauchLascheidWinringenKarlshausenEilscheidMatzerathDasburgSellerichHargartenNiederradenSinspeltNimsreulandMasthornLünebachDackscheidNimshuscheidBuchetArzfeldJuckenGroßlangenfeldNasingenMuxerathAuw bei PrümObergecklerWaxweilerLierfeldFischbach-OberradenBirtlingenLichtenbornWinterscheidMützenichNiedergecklerBerscheidHeilenbachUtscheidZweifelscheidScheitenkorbKoxhausenHerbstmühlePlütscheidSeffernScheuernGeichlingenSefferweichTrimportBeilingenLauperathWiersdorfPlascheidKrautscheidAmmeldingen bei NeuerburgBerkothUppershausenWilseckerSülmHeilbachLießemBickendorfBiersdorf am SeeOlmscheidBrimingenHiselEchtershausenOberpierscheidOberweisAltscheidWeidingenOberweilerMauelKinzenburgNiederpierscheidUschBitburgEhlenzFließemNattenheimHütterscheidBrechtFeilsdorfMalbergweichWißmannsdorfOrsfeldGindorfMülbachEmmelbaumKickeshausenBaustertPickließemDudeldorfKyllburgHerforstScharfbilligBademKyllburgweilerRöhlEtteldorfReipeldingenGondorfPhilippsheimMetterichHüttingen an der KyllEuscheidStrickscheidSchneifel

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