{"id":991,"date":"2025-04-06T10:44:32","date_gmt":"2025-04-06T15:44:32","guid":{"rendered":"https:\/\/happymazes.com\/cy\/14-archwilio-ogof-fwyaf-y-byd-fietnams-hang-son-doong-natures-super-maze\/"},"modified":"2025-04-06T10:44:32","modified_gmt":"2025-04-06T15:44:32","slug":"14-archwilio-ogof-fwyaf-y-byd-fietnams-hang-son-doong-natures-super-maze","status":"publish","type":"post","link":"https:\/\/happymazes.com\/cy\/14-archwilio-ogof-fwyaf-y-byd-fietnams-hang-son-doong-natures-super-maze\/","title":{"rendered":"14 &#8211; Archwilio Ogof Fwyaf y Byd: Fietnam\u2019s Hang Son Doong &#8211; Nature\u2019s Super Maze\u200c"},"content":{"rendered":"<p>\n <strong><br \/>\n  Ble mae? \u200c<br \/>\n <\/strong>\n<\/p>\n<p>\n Yn ddwfn o fewn Fietnam\u2019s Phong Nha-Ke Bang mae Parc Cenedlaethol yn gorwedd yn hongian Son Doong, ogof naturiol fwyaf y byd. Wedi&#x27;i enwi&#x27;n un o \u201cLleoedd harddaf y Ddaear\u201d gan y BBC, mae&#x27;r ogof hon yn rhyfeddod go iawn.\n<\/p>\n<p>\n <strong><br \/>\n  Pam y&#x27;i gelwir yn \u201cddrysfa\u201d? \u200c<br \/>\n <\/strong>\n<\/p>\n<p>\n \u2705 \u200c150 Ogof\u00e2u cysylltiedig\u200c: Mae ei dwneli troellog yn ymestyn dros 10 cilomedr (6.2 milltir), gan ffurfio pos anferth tanddaearol.\n<\/p>\n<figure class=\"wp-block-image size-full\">\n <img alt=\"hang-son-doong-1\" class=\"wp-image-2136\" decoding=\"async\" height=\"427\" loading=\"lazy\" sizes=\"(max-width: 640px) 100vw, 640px\" src=\"https:\/\/happymazes.com\/wp-content\/uploads\/2025\/04\/hang-son-doong-1.webp\" srcset=\"https:\/\/happymazes.com\/wp-content\/uploads\/2025\/04\/hang-son-doong-1.webp 640w, https:\/\/happymazes.com\/wp-content\/uploads\/2025\/04\/hang-son-doong-1-300x200.webp 300w, https:\/\/happymazes.com\/wp-content\/uploads\/2025\/04\/hang-son-doong-1-600x400.webp 600w\" width=\"640\"\/><br \/>\n<\/figure>\n<p>\n \u2705 \u200cskylights and Rivers\u200c: Wedi&#x27;i ffurfio 55 miliwn o flynyddoedd yn \u00f4l gan afonydd tanddaearol yn erydu calchfaen, creodd nenfydau wedi cwympo \u201cffenestri to\u201d sy&#x27;n gadael i olau haul a glaw faethu coedwigoedd ac afonydd y tu mewn i&#x27;r ogof.\n<\/p>\n<figure class=\"wp-block-image size-full\">\n <img alt=\"Hang Son Doong\" class=\"wp-image-2137\" decoding=\"async\" height=\"390\" loading=\"lazy\" sizes=\"(max-width: 624px) 100vw, 624px\" src=\"https:\/\/happymazes.com\/wp-content\/uploads\/2025\/04\/hang-son-doong-2.webp\" srcset=\"https:\/\/happymazes.com\/wp-content\/uploads\/2025\/04\/hang-son-doong-2.webp 624w, https:\/\/happymazes.com\/wp-content\/uploads\/2025\/04\/hang-son-doong-2-300x188.webp 300w, https:\/\/happymazes.com\/wp-content\/uploads\/2025\/04\/hang-son-doong-2-600x375.webp 600w\" width=\"624\"\/><br \/>\n<\/figure>\n<p>\n <strong><br \/>\n  Beth sydd y tu mewn? \u200c<br \/>\n <\/strong>\n<\/p>\n<p>\n \u2705 \u200cunderground Jungle\u200c: Mae golau haul o ffenestri to yn bwydo coed yn tyfu y tu mewn i&#x27;r ogof, yn gartref i fwnc\u00efod, ystlumod ac adar.\n<\/p>\n<figure class=\"wp-block-image size-full\">\n <img alt=\"hang-son-doong-4\" class=\"wp-image-2139\" decoding=\"async\" height=\"390\" loading=\"lazy\" sizes=\"(max-width: 640px) 100vw, 640px\" src=\"https:\/\/happymazes.com\/wp-content\/uploads\/2025\/04\/hang-son-doong-4.webp\" srcset=\"https:\/\/happymazes.com\/wp-content\/uploads\/2025\/04\/hang-son-doong-4.webp 640w, https:\/\/happymazes.com\/wp-content\/uploads\/2025\/04\/hang-son-doong-4-300x183.webp 300w, https:\/\/happymazes.com\/wp-content\/uploads\/2025\/04\/hang-son-doong-4-600x366.webp 600w\" width=\"640\"\/><br \/>\n<\/figure>\n<p>\n Ogof \u2705 \u200ca sy&#x27;n glawio\u200c: Mae aer llaith yn ffurfio cymylau wrth nenfwd yr ogof, gan greu glaw a&#x27;i system dywydd fach ei hun.\n<\/p>\n<figure class=\"wp-block-image size-full\">\n <img alt=\"hang-son-doong-5\" class=\"wp-image-2140\" decoding=\"async\" height=\"400\" loading=\"lazy\" sizes=\"(max-width: 600px) 100vw, 600px\" src=\"https:\/\/happymazes.com\/wp-content\/uploads\/2025\/04\/hang-son-doong-5.webp\" srcset=\"https:\/\/happymazes.com\/wp-content\/uploads\/2025\/04\/hang-son-doong-5.webp 600w, https:\/\/happymazes.com\/wp-content\/uploads\/2025\/04\/hang-son-doong-5-300x200.webp 300w\" width=\"600\"\/><br \/>\n<\/figure>\n<p>\n Perlau \u2705 \u200ccave\u200c: peli calchfaen maint p\u00eal fas a ffurfiwyd gan ddefnynnau d\u0175r yn dyddodi mwynau dros gannoedd o flynyddoedd.\n<\/p>\n<figure class=\"wp-block-image size-full\">\n <img alt=\"hang-son-doong-7\" class=\"wp-image-2143\" decoding=\"async\" height=\"415\" loading=\"lazy\" sizes=\"(max-width: 556px) 100vw, 556px\" src=\"https:\/\/happymazes.com\/wp-content\/uploads\/2025\/04\/hang-son-doong-7.webp\" srcset=\"https:\/\/happymazes.com\/wp-content\/uploads\/2025\/04\/hang-son-doong-7.webp 556w, https:\/\/happymazes.com\/wp-content\/uploads\/2025\/04\/hang-son-doong-7-300x224.webp 300w\" width=\"556\"\/><br \/>\n<\/figure>\n<p>\n <strong><br \/>\n  Sut mae pobl yn ei archwilio? \u200c<br \/>\n <\/strong>\n<\/p>\n<p>\n Her \u200c \u200cExtreme\u200c: Rhaid i ymwelwyr gerdded 50 cilomedr (31 milltir) dros 6 diwrnod, dringo clogwyni 90-metr (295 troedfedd), a chroesi afonydd tanddaearol. Dim ond 300 o bobl y flwyddyn sy&#x27;n cael eu caniat\u00e1u (llai na&#x27;r rhai sy&#x27;n dringo Mount Everest!).\n<\/p>\n<figure class=\"wp-block-image size-large\">\n <img alt=\"hang-son-doong-6\" class=\"wp-image-2141\" decoding=\"async\" height=\"681\" loading=\"lazy\" sizes=\"(max-width: 1024px) 100vw, 1024px\" src=\"https:\/\/happymazes.com\/wp-content\/uploads\/2025\/04\/hang-son-doong-5-1-1024x681.webp\" srcset=\"https:\/\/happymazes.com\/wp-content\/uploads\/2025\/04\/hang-son-doong-5-1-1024x681.webp 1024w, https:\/\/happymazes.com\/wp-content\/uploads\/2025\/04\/hang-son-doong-5-1-300x200.webp 300w, https:\/\/happymazes.com\/wp-content\/uploads\/2025\/04\/hang-son-doong-5-1-768x511.webp 768w, https:\/\/happymazes.com\/wp-content\/uploads\/2025\/04\/hang-son-doong-5-1-600x399.webp 600w, https:\/\/happymazes.com\/wp-content\/uploads\/2025\/04\/hang-son-doong-5-1.webp 1240w\" width=\"1024\"\/><br \/>\n<\/figure>\n<p>\n Rheolau Diogelwch \u2705: Mae llywodraeth Fietnam yn caniat\u00e1u dim ond un cwmni teithiau trwyddedig. Rhaid i ymwelwyr gymhwyso blwyddyn ymlaen llaw a phasio gwiriadau iechyd.\n<\/p>\n<figure class=\"wp-block-image size-full\">\n <img alt=\"hang-son-doong-3\" class=\"wp-image-2138\" decoding=\"async\" height=\"390\" loading=\"lazy\" sizes=\"(max-width: 640px) 100vw, 640px\" src=\"https:\/\/happymazes.com\/wp-content\/uploads\/2025\/04\/hang-son-doong-3.webp\" srcset=\"https:\/\/happymazes.com\/wp-content\/uploads\/2025\/04\/hang-son-doong-3.webp 640w, https:\/\/happymazes.com\/wp-content\/uploads\/2025\/04\/hang-son-doong-3-300x183.webp 300w, https:\/\/happymazes.com\/wp-content\/uploads\/2025\/04\/hang-son-doong-3-600x366.webp 600w\" width=\"640\"\/><br \/>\n<\/figure>\n<p>\n <strong><br \/>\n  Stats chwythu meddwl\u200c<br \/>\n <\/strong>\n<\/p>\n<p>\n \u2705 \u200cfits 7.2 biliwn o bobl\u200c: gallai siambrau helaeth yr ogof ddal y boblogaeth fyd -eang gyfan.\n<\/p>\n<p>\n \u2705 \u200cTaller na Skyscrapers\u200c: Mae&#x27;r pwynt uchaf yn cyrraedd 200 metr (656 troedfedd)-mor dal fel adeilad 40 stori.\n<\/p>\n<p>\n <strong><br \/>\n  Awgrymiadau\u200c<br \/>\n <\/strong>\n<\/p>\n<p>\n \u26a0\ufe0f Rhaid iventurers lofnodi cytundebau diogelwch &#8211; nid oes signal ff\u00f4n, ac mae llywio yn dibynnu ar ganllawiau arbenigol.\n<\/p>\n<p>\n \ud83c\udf0d Nid ogof yn unig mo hwn; Mae&#x27;n amgueddfa ddaearegol fyw, gan arddangos 50 miliwn o flynyddoedd o hanes y Ddaear.\n<\/p>\n<p>\n (Ffynhonnell Data: Sefydliad Daearyddol Cenedlaethol Fietnam, 2023)\n<\/p>\n<p>\n <em><br \/>\n  Sylwch fod yr erthygl hon wedi&#x27;i chyfieithu o&#x27;i fersiwn Saesneg gan Google Translator.<br \/>\n <\/em>\n<\/p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ble mae? \u200c yn ddwfn o fewn Fietnam\u2019s Phong Nha-Ke Bang Park Lies Hang Son Doong, ogof naturiol fwyaf y byd. Wedi&#x27;i enwi&#x27;n un o \u201cLleoedd harddaf y Ddaear\u201d gan y BBC, mae&#x27;r ogof hon yn rhyfeddod go iawn. Pam y&#x27;i gelwir yn \u201cddrysfa\u201d? \u200c \u2705 \u200c150 Ogof\u00e2u cysylltiedig\u200c: Mae ei dwneli troellog yn ymestyn dros 10 cilomedr (6.2 milltir), [\u2026]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","_surecart_dashboard_logo_width":"180px","_surecart_dashboard_show_logo":true,"_surecart_dashboard_navigation_orders":true,"_surecart_dashboard_navigation_invoices":true,"_surecart_dashboard_navigation_subscriptions":true,"_surecart_dashboard_navigation_downloads":true,"_surecart_dashboard_navigation_billing":true,"_surecart_dashboard_navigation_account":true,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[],"tags":[],"class_list":["post-991","post","type-post","status-publish","format-standard","hentry"],"aioseo_notices":[],"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false,"woocommerce_thumbnail":false,"woocommerce_single":false,"woocommerce_gallery_thumbnail":false},"uagb_author_info":{"display_name":"bamstone","author_link":"https:\/\/happymazes.com\/cy\/author\/bamstoneoutlook-com\/"},"uagb_comment_info":0,"uagb_excerpt":"Ble mae? \u200c yn ddwfn o fewn Fietnam\u2019s Phong Nha-Ke Bang Park Lies Hang Son Doong, ogof naturiol fwyaf y byd. Wedi&#x27;i enwi&#x27;n un o \u201cLleoedd harddaf y Ddaear\u201d gan y BBC, mae&#x27;r ogof hon yn rhyfeddod go iawn. Pam y&#x27;i gelwir yn \u201cddrysfa\u201d? \u200c \u2705 \u200c150 Ogof\u00e2u cysylltiedig\u200c: Mae ei dwneli troellog yn ymestyn&hellip;","_links":{"self":[{"href":"https:\/\/happymazes.com\/cy\/wp-json\/wp\/v2\/posts\/991"}],"collection":[{"href":"https:\/\/happymazes.com\/cy\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/happymazes.com\/cy\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/happymazes.com\/cy\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/happymazes.com\/cy\/wp-json\/wp\/v2\/comments?post=991"}],"version-history":[{"count":0,"href":"https:\/\/happymazes.com\/cy\/wp-json\/wp\/v2\/posts\/991\/revisions"}],"wp:attachment":[{"href":"https:\/\/happymazes.com\/cy\/wp-json\/wp\/v2\/media?parent=991"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/happymazes.com\/cy\/wp-json\/wp\/v2\/categories?post=991"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/happymazes.com\/cy\/wp-json\/wp\/v2\/tags?post=991"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}