The Top 7 Natural Monuments around Henllys
Henllys’s landscape is a beautiful place to explore — something that you can best experience by visiting one of our 7
beautiful natural monuments around Henllys. 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!
beautiful natural monuments around Henllys. 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: November 4, 2025
Twmbarlwm Hill and Iron Age hillfort
Highlight • Historical Site
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 Summit
Highlight • Viewpoint
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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Trig point at Mynydd Twyn-glas summit
Highlight • Natural Monument
Mynydd Twyn-glas is a sprawling 472-metre-high mountain extending into Caerphilly and Torfaen county boroughs in South Wales. It lies southwest of Pontypool, west of Cwmbran and east of Newbridge and …
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Llandegfedd Reservoir
Highlight • Natural Monument
A lovely place with great views, with a variety of walking trails on offer.
Please note that the majority of the trails are closed annually from 1st October to 1st …
Please note that the majority of the trails are closed annually from 1st October to 1st …
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Wern Ddu Clay Pit Nature Reserve
Highlight • Historical Site
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 Henllys:
YstradfellteMaescarCrayLlywelTawe-UchafThe Vale Of GrwyneyLlanfrynachYstradgynlaisLlangynidrCrickhowellPembrokeshireOnllwynResolvenCymer And GlyncorrwgBlaengwrachGlynneathSeven SistersLlangattockLlanveynoeGlyn TarellLlanfihangel Cwmdu With Bwlch And CathedineTalybont-On-UskMonmouthshireBreconSwanseaTrallongLlangorsYscirTalgarthGwernyfedBronllysLlanddewLlanrhidian LowerLlanigonIlstonReynoldstonPenriceLlanrhidian HigherPort EynonFelin-FachLongtownCraswallPennardRhossiliLlangennith, Llanmadoc And CheritonMichaelchurch EscleyUpper KillayCarmarthenshireHonddu IsafCrynantGowertonBishopstonAbersychanMumblesBedwas Trethomas & MachenCockettVale of GlamorganRudryCaerphillyVanBlaenavonLisvaneRhiwbinaLlanbradachMaesycwmmerCwmllynfellPontardawePentyrchYstalyferaPenyrheol Trecenydd & EnerglynRadyr and MorganstownWhitchurchPontprennauWalterstoneTongwynlaisAber ValleyPeterchurchGelligaerHeathSt. MargaretsPengamCeredigionNewtonSkettyKillayDunvantCefn FforestArgoedAbbey DorePelennaNelsonTurnastoneVowchurchCilybebyllPontllanfraithLlancilloLlanishenLlandaff NorthPentwynCathaysCyncoedOld St MellonsNeath Port TalbotBrynCrumlinPenmaenBlackwoodRhondda Cynon TafPen TranchRowlstoneYnysdduGwaun-Cae-GurwenBargoedBactonMargamClyne And MelincourtLlwchwrUplandsCastleTownhillCwmavonDulasAbercarnNewbridgeRisca EastRisca WestMargam MoorsPenylanRoathGwynfi And CroeserwMawrEwyas HaroldBriton FerryNeathLlanwrtyd WellsTenbyTrevethinNew InnFairwaterPenderryCrosskeysCoedffrancDyffryn ClydachCardiffTonnaBlaenhonddanTai-BachAberavonSandfields EastPort TalbotKentchurchCaerphillyCwmbran CentralPonthirLlanyrafonUpper CwmbranLlantarnamCroesyceiliogPontnewyddPontymoileBon-Y-MaenSt. ThomasCwmbrwlaLandoreBaglanBaglan MoorsSandfields WestBaglan BayKenderchurchMynyddbachBirchgroveLlangyfelachClydach
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