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Gelligaer

The Top 13 Natural Monuments around Gelligaer

Gelligaer’s landscape is a beautiful place to explore — something that you can best experience by visiting one of our 13

beautiful natural monuments around Gelligaer. To help you find the one for, you can see all the details you need to explore the best natural monuments, and better plan your next outdoor adventure!

Last updated: October 3, 2025

Twmbarlwm Hill and Iron Age Hillfort

Twmbarlwm is a 1,375 foot (419 m) hill that is rich in beauty, history and folklore. From the summit, you are afforded wonderful views of the Severn Estuary. There is an Iron Age hill fort on the summit, too.

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Mynydd Machen is a 1,188-foot (362 m) hill in South Wales which affords glorious views over Newport, Cardiff, Steep Holm, Flat Holm, Brean Down, and the Severn Estuary. The summit …

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Stunning little hill with commanding views just outside Cardiff with a trig pointed summit. It is a UK listed Marilyn.

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High above the A470 to the north of Quaker’s Yard, the Giant’s Bite is a dramatic gap in the skyline quarried from the ridge top at the former Cefn Glas …

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Wern Ddu is an SSSI, the quarry workings being around 150 years old and leaving exposed geology that is a little bit older (estimated 300 million years previous).

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

PembrokeshireLlanveynoeSwanseaLlanrhidian LowerPenriceIlstonCarmarthenshirePort EynonLlanrhidian HigherReynoldstonLongtownPennardLlangennith, Llanmadoc And CheritonRhossiliCraswallUpper KillayMichaelchurch EscleyGowertonBishopstonMumblesVale of GlamorganCockettBedwas Trethomas & MachenCaerphillyRudryVanLisvaneLlanbradachRhiwbinaMaesycwmmerWalterstonePentyrchPontprennauWhitchurchPenyrheol Trecenydd & EnerglynRadyr and MorganstownPeterchurchCeredigionHeathTongwynlaisAber ValleySt. MargaretsPengamNewtonSkettyKillayDunvantArgoedAbbey DoreCefn FforestNelsonLlancilloLlanishenCyncoedPentwynCathaysLlandaff NorthOld St MellonsPontllanfraithNeath Port TalbotVowchurchTurnastoneCrumlinBlackwoodPenmaenRowlstoneRhondda Cynon TafYnysdduBargoedLlwchwrUplandsBactonTownhillCastleDulasNewbridgeRisca EastRisca WestAbercarnMawrPenylanRoathTenbyEwyas HaroldPenderryCrosskeysCardiffKentchurchCaerphillySt. ThomasLandoreBon-Y-MaenCwmbrwlaMynyddbachBirchgroveLlangyfelachClydach

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