
A Lake Steeped in Legend
Nestled in the heart of Snowdonia, Bala Lake (Llyn Tegid) is not just Wales’ largest natural lake,it is a vessel of ancient myths, secrets, and timeless folklore. For centuries, its deep, dark waters have inspired tales of drowned kingdoms, enchanted creatures, and legendary heroes. The lake’s name itself, “Tegid”, hints at its mystical past, derived from the Welsh word for “serene” or “fair.” But beneath its tranquil surface lies a world of myth and magic, where history and legend blur.
The Drowned Kingdom of King Helig
One of the most enduring legends of Bala Lake is the story of King Helig ap Glannog, a 6th-century ruler whose kingdom, Cantref Gwaelod, was said to lie beneath the waves. According to folklore, Helig’s land was a fertile lowland, protected by dyke and dam. But one fateful night, the sea gates were left open, either by the negligence of a drunken gatekeeper or the wrath of a scorned fairy, and the waters rushed in, swallowing the kingdom whole.
To this day, locals claim that on quiet nights, the church bells of Helig’s lost kingdom can still be heard tolling from the depths. Fishermen tell of glimpsing rooftops and towering spires far below, and some even say that Helig and his court sleep beneath the lake, waiting for the day they will rise again.
“When the waters are still, and the mist hangs low, you can hear the echoes of a lost world.”

Tegid Foel and the Sleeping Warriors
Another tale speaks of Tegid Foel, a giant or king who once ruled the region. It is said that he and his warriors rest in a hidden cave beneath the lake, ready to awaken in Wales’ hour of greatest need. This legend mirrors the broader Welsh myth of sleeping heroes, warriors who lie in wait, much like King Arthur in Avalon, to return when their homeland calls.
Some versions of the story claim that Tegid Foel was a giant who carved out the lake with his bare hands, while others say he was a nobleman transformed into a monster for his sins. Whatever the truth, his name lives on in the lake’s Welsh identity: “Llyn Tegid”.
The Afanc: Wales’ Loch Ness Monster
No body of water in Welsh mythology is complete without its own lake monster , and Bala Lake is no exception. The Afanc, a monstrous, crocodile-like beast, was said to dwell in the lake, dragging unsuspecting travelers to their doom. Unlike the gentle giants of other myths, the Afanc was a creature of chaos, its thrashing tail causing floods and destruction.
Legends tell of how the Afanc was finally lured out of the lake by a clever maiden, who tricked it into following her to a deep pit, where it was trapped forever. Some say the beast still stirs in the depths, its occasional movements causing mysterious ripples on the surface.
The Gwragedd Annwn: Fairy Wives of the Lake
Bala Lake is also home to the Gwragedd Annwn, the “Wives of the Otherworld.” These beautiful, elusive fairy women were said to emerge from the water, sometimes to help humans, other times to lure them into their aquatic realm. Fishermen who caught glimpses of them described them as radiant, with long flowing hair and dresses woven from lake reeds.
One famous tale tells of a young man who married a Gwragedd Annwn, only for her to vanish back into the lake when he broke a taboo, often by striking her or revealing her true nature. These stories serve as cautionary tales about the perils of mortal curiosity and the thin veil between our world and the Otherworld.
Merlin, Arthur, and the Lady of the Lake
Bala Lake is sometimes linked to the broader Arthurian legends. Some scholars suggest that the lake could be one of the many bodies of water associated with the Lady of the Lake, the enchantress who gave King Arthur his sword, Excalibur.
Local lore says that Merlin himself once walked these shores, drawn by the lake’s magical properties. Whether as a place of prophecy, a hiding spot for sacred relics, or a gateway to Avalon, Bala Lake’s connection to Arthurian myth adds another layer to its mystique.
What do you think lies beneath the surface of Bala Lake? A lost kingdom? A slumbering monster? Or something even older? Share your thoughts and your own legends.

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100 endangered plant and animal species
* Abies beshanzuensis (Baishan fir) – Plant (Tree) – Baishanzu Mountain, Zhejiang, China – Three mature individuals
* Actinote zikani – Insect (butterfly) – Near São Paulo, Atlantic forest, Brazil – Unknown numbers
* Aipysurus foliosquama (Leaf scaled sea-snake) – Reptile – Ashmore Reef and Hibernia Reef, Timor Sea – Unknown numbers * Amanipodagrion gilliesi (Amani flatwing) – Insect (damselfly) – Amani-Sigi Forest, Usamabara Mountains, Tanzania – < 500 individuals * Antisolabis seychellensis – Insect – Morne Blanc, Mahé island, Seychelles – Unknown numbers * Antilophia bokermanni (Araripe manakin) – Bird – Chapado do Araripe, South Ceará, Brazil – 779 individuals * Aphanius transgrediens (Aci Göl toothcarp) – Fish – south-eastern shore of former Lake Aci, Turkey – Few hundred pairs * Aproteles bulmerae (Bulmer’s fruit bat) – Mammal – Luplupwintern Cave, Western Province, Papua New Guinea – 150 * Ardea insignis (White bellied heron) – Bird – Bhutan, North East India and Myanmar – 70–400 individuals * Ardeotis nigriceps (Great Indian bustard) – Bird – Rajasthan, Gujarat, Maharashtra, Andhra Pradesh, Karnataka and Madhya, India – 50–249 mature individuals * Astrochelys yniphora (Ploughshare tortoise) – Reptile – Baly Bay region, northwestern Madagascar – 440–770 * Atelopus balios (Rio Pescado stubfoot toad) – Amphibian – Azuay, Cañar and Guyas provinces, south-western Ecuador – Unknown numbers * Aythya innotata (Madagascar pochard) – Bird – volcanic lakes north of Bealanana, Madagascar – 80 mature individuals * Azurina eupalama (Galapagos damsel fish) – Fish – Unknown numbers – Unknown numbers * Bahaba taipingensis (Giant yellow croaker) – Fish – Chinese coast from Yangtze River, China to Hong Kong – Unknown numbers * Batagur baska (Common batagur) – Reptile (turtle) – Bangladesh, Cambodia, India, Indonesia and Malaysia – Unknown numbers * Bazzania bhutanica – Plant – Budini and Lafeti Khola, Bhutan – 2 sub-populations * Beatragus hunteri (Hirola) – Mammal (antelope) – South-east Kenya and possibly south-west Somalia – < 1,000 individuals * Bombus franklini (Franklin’s bumblebee) – Insect (bee) – Oregon and California – Unknown numbers * Brachyteles hypoxanthus (Northern muriqui / Woolly spider monkey) – Mammal (primate) – Atlantic forest, south-eastern Brazil – < 1,000 * Bradypus pygmaeus (Pygmy three-toed sloth) – Mammal – Isla Escudo de Veraguas, Panama – < 500 * Callitriche pulchra – Plant (freshwater) – pool on Gavdos, Greece – Unknown numbers * Calumma tarzan (Tarzan’s chameleon) – Reptile – Anosibe An’Ala region, eastern Madagascar – < 100 * Cavia intermedia (Santa Catarina’s guinea pig) – Mammal (rodent) – Moleques do Sul Island, Santa Catarina, Brazil – 40–60 * Cercopithecus roloway (Roloway guenon) – Mammal (primate) – Côte d’Ivoire – Unknown numbers * Coleura seychellensis (Seychelles sheath-tailed bat) – Mammal (bat) – Two small caves on Silhouette and Mahé, Seychelles – < 100 * Cryptomyces maximus (Willow blister) – Fungi – Pembrokeshire, United Kingdom – Unknown numbers * Cryptotis nelsoni (Nelson’s small-eared shrew) – Mammal (shrew) – Volcán San Martín Tuxtla, Veracruz, Mexico – Unknown numbers * Cyclura collei (Jamaican iguana / Jamaican rock iguana) – Reptile – Hellshire Hills, Jamaica – Unknown numbers * Daubentonia madagascariensis (Aye-aye) – Mammal (primate) – Deciduous forest, East Madagascar – Unknown numbers * Dendrophylax fawcettii (Cayman Islands ghost orchid) – Plant (orchid) – Ironwood Forest, George Town, Grand Cayman – Unknown numbers * Dicerorhinus sumatrensis (Sumatran rhino) – Mammal (rhino) – Sabah, Sarawak and Peninsular Malaysia, Kalimantan and Sumatra, Indonesia – < 100 (more recent estimates suggest 34-47) * Diomedea amsterdamensis (Amsterdam albatross) – Bird – Breeds on Plateuau des Tourbières, Amsterdam Island, Indian Ocean. – 100 mature individuals * Dioscorea strydomiana (Wild yam) – Plant – Oshoek area, Mpumalanga, South Africa – 200 * Diospyros katendei – Plant (tree) – Kasyoha-Kitomi Forest Reserve, Uganda – 20 individuals in a single population * Dipterocarpus lamellatus – Plant (tree) – Siangau Forest Reserve, Sabah, Malaysia – 12 individuals * Discoglossus nigriventer (Hula painted frog) – Amphibian – Hula Valley, Israel – Unknown numbers * Dombeya mauritiana – Plant – Mauritius – Unknown numbers * Elaeocarpus bojeri (Bois Dentelle) – Plant (tree) – Grand Bassin, Mauritius – < 10 individuals * Eleutherodactylus glandulifer (La Hotte glanded frog) – Amphibian – Massif de la Hotte, Haiti – Unknown numbers * Eleutherodactylus thorectes (Macaya breast-spot frog) – Amphibian – Formon and Macaya peaks, Masif de la Hotte, Haiti – Unknown numbers * Eriosyce chilensis (Chilenito (cactus)) – Plant – Pta Molles and Pichidungui, Chile – < 500 individuals * Erythrina schliebenii (Coral tree) – Plant – Namatimbili-Ngarama Forest, Tanzania – < 50 individuals * Euphorbia tanaensis – Plant (tree) – Witu Forest Reserve, Kenya – 4 mature individuals * Eurynorhyncus pygmeus (Spoon-billed sandpiper) – Bird – Breeds in Russia, migrates along the East Asian-Australasian Flyway to wintering grounds in India, Bangladesh and Myanmar – 100 breeding pairs * Ficus katendei – Plant – Kasyoha-Kitomi Forest Reserve, Ishasha River, Uganda – < 50 mature individuals * Geronticus eremita (Northern bald ibis) – Bird – Breeds in Morocco, Turkey and Syria. Syrian population winters in central Ethiopia. – About 3000 individuals * Gigasiphon macrosiphon – Plant (flower) – Kaya Muhaka, Gongoni and Mrima Forest Reserves, Kenya, Amani Nature Reserve, West Kilombero Scarp Forest Reserve, and Kihansi Gorge, Tanzania – 33 * Gocea ohridana – Mollusc – Lake Ohrid, Macedonia – Unknown numbers * Heleophryne rosei (Table mountain ghost frog) – Amphibian – Table Mountain, Western Cape Province, South Africa – Unknown numbers * Hemicycla paeteliana – Mollusc (land snail) – Jandia peninsula, Fuerteventura, Canary Islands – Unknown numbers * Heteromirafa sidamoensis (Liben lark) – Bird – Liben Plains, southern Ethiopia – 90–256 * Hibiscadelphus woodii – Plant (tree) – Kalalau Valley, Hawaii – Unknown numbers * Hucho perryi (Sakhalin taimen) – Fish – Russian and Japanese rivers, Pacific Ocean between Russia and Japan – Unknown numbers * Johora singaporensis (Singapore freshwater crab) – Crustacean – Bukit Timah Nature Reserve and streamlet near Bukit Batok, Singapore – Unknown numbers * Lathyrus belinensis (Belin vetchling) – Plant – Outskirts of Belin village, Antalya, Turkey – < 1,000 * Leiopelma archeyi (Archey’s frog) – Amphibian – Coromandel peninsula and Whareorino Forest, New Zealand – Unknown numbers * Lithobates sevosus (Dusky gopher frog) – Amphibian – Harrison County, Mississippi, USA – 60–100 * Lophura edwardsi (Edwards’s pheasant) – Bird – Quang Binh, Quang Tri and Thua Thien-Hue, Viet Nam – Unknown numbers * Magnolia wolfii – Plant (tree) – Risaralda, Colombia – 3 * Margaritifera marocana – Mollusc – Oued Denna, Oued Abid and Oued Beth, Morocco – < 250 * Moominia willii – Mollusc (snail) – Silhouette Island, Seychelles – < 500 * Natalus primus (Cuban greater funnel eared bat) – Mammal (bat) – Cueva La Barca, Isle of Pines, Cuba – < 100 * Nepenthes attenboroughii (Attenborough’s pitcher plant) – Plant – Mount Victoria, Palawan, Philippines – Unknown numbers * Nomascus hainanus (Hainan black crested gibbon) – Mammal (primate) – Hainan Island, China – 20 * Neurergus kaiseri (Luristan newt) – Amphibian – Zagros Mountains, Lorestan, Iran – < 1,000 * Oreocnemis phoenix (Mulanje red damsel) – Insect (damselfly) – Mulanje Plateau, Malawi – Unknown numbers * Pangasius sanitwongsei (Pangasid catfish) – Fish – Chao Phraya and Mekong basins in Cambodia, China, Lao PDR, Thailand and Viet Nam – Unknown numbers * Parides burchellanus – Insect (butterfly) – Cerrado, Brazil – < 100 * Phocoena sinus (Vaquita) – Mammal (porpoise) – Northern Gulf of California, Mexico – 12 * Picea neoveitchii (Type of spruce tree) – Plant (tree) – Qinling Range, China – Unknown numbers * Pinus squamata (Qiaojia pine) – Plant (tree) – Qiaojia, Yunnan, China – < 25 * Poecilotheria metallica (Gooty tarantula / Metallic tarantula / Peacock tarantula / Salepurgu) – Spider – Nandyal and Giddalur, Andhra Pradesh, India – Unknown numbers * Pomarea whitneyi (Fatuhiva monarch) – Bird – Fatu Hiva, Marquesas Islands, French Polynesia – 50 * Pristis pristis (Common sawfish) – Fish – Coastal tropical and subtropical waters of Indo-Pacific and Atlantic Oceans. Currently largely restricted to northern Australia – Unknown numbers * Hapalemur simus (Greater bamboo lemur) – Mammal (primate) – Southeastern and southcentral rainforests of Madagascar – 500 * Propithecus candidus (Silky sifaka) – Mammal (primate) – Maroantsetra to Andapa basin, and Marojeju Massif, Madagascar – 100–1,000 * Psammobates geometricus (Geometric tortoise) – Reptile – Western Cape Province, South Africa – Unknown numbers * Pseudoryx nghetinhensis (Saola) – Mammal – Annamite mountains, on the Viet Nam – PDR Laos border – Unknown numbers * Psiadia cataractae – Plant – Mauritius – Unknown numbers * Psorodonotus ebneri (Beydaglari bush-cricket) – Insect – Beydaglari range, Antalaya, Turkey – Unknown numbers * Rafetus swinhoei (Red River giant softshell turtle) – Reptile – Hoan Kiem Lake and Dong Mo Lake, Viet Nam, and Suzhou Zoo, China – 3 * Rhinoceros sondaicus (Javan rhino) – Mammal (rhino) – Ujung Kulon National Park, Java, Indonesia – < 100 * Rhinopithecus avunculus (Tonkin snub-nosed monkey) – Mammal (primate) – Northeastern Vietnam – < 200 * Rhizanthella gardneri (West Australian underground orchid) – Plant (orchid) – Western Australia, Australia – < 100 * Rhynchocyon spp. (Boni giant sengi) – Mammal – Boni-Dodori Forest, Lamu area, Kenya – Unknown numbers * Risiocnemis seidenschwarzi (Cebu frill-wing) – Insect (damselfly) – Rivulet beside the Kawasan River, Cebu, Philippines – Unknown numbers * Rosa arabica – Plant – St Katherine Mountains, Egypt – Unknown numbers, 10 sub-populations * Salanoia durrelli (Durrell’s vontsira) – Mammal (mongoose) – Marshes of Lake Alaotra, Madagascar – Unknown numbers * Santamartamys rufodorsalis (Red crested tree rat) – Mammal (rodent) – Sierra Nevada de Santa Marta, Colombia – Unknown numbers * Scaturiginichthys vermeilipinnis (Red-finned blue-eye) – Fish – Edgbaston Station, central western Queensland, Australia – 2,000–4,000 * Squatina squatina (Angel shark) – Fish – Canary Islands – Unknown numbers * Sterna bernsteini (Chinese crested tern) – Bird – Breeding in Zhejiang and Fujian, China. Outside breeding season in Indonesia, Malaysia, Philippines, Taiwan, Thailand. – < 50 * Syngnathus watermeyeri (Estuarine pipefish) – Fish – Kariega Estuary to East Kleinemonde Estuary, Eastern Cape Province, South Africa – Unknown numbers * Tahina spectabilis (Suicide palm / Dimaka) – Plant – Analalava district, north-western Madagascar – 90 * Telmatobufo bullocki (Bullock’s false toad) – Amphibian (frog) – Nahuelbuta, Arauco Province, Chile – Unknown numbers * Tokudaia muenninki (Okinawa spiny rat) – Mammal (rodent) – Okinawa Island, Japan – Unknown numbers * Trigonostigma somphongsi (Somphongs’s rasbora) – Fish – Mae Khlong basin, Thailand – Unknown numbers * Valencia letourneuxi – Fish – Southern Albania and Western Greece – Unknown numbers * Voanioala gerardii (Forest coconut) – Plant – Masoala peninsula, Madagascar – < 10 * Zaglossus attenboroughi (Attenborough’s echidna) – Mammal – Cyclops Mountains, Papua Province, Indonesia – Unknown numbers

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