{"version":"1.0","provider_name":"Travelstart Blog","provider_url":"https:\/\/www.travelstart.co.za\/blog","title":"World's Largest Cave Hides in Vietnam - Travelstart Blog","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"xKVOF6eSbg\"><a href=\"https:\/\/www.travelstart.co.za\/blog\/worlds-largest-cave-hides-in-vietnam\/\">World&#8217;s Largest Cave Hides in Vietnam<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/www.travelstart.co.za\/blog\/worlds-largest-cave-hides-in-vietnam\/embed\/#?secret=xKVOF6eSbg\" width=\"600\" height=\"338\" title=\"&#8220;World&#8217;s Largest Cave Hides in Vietnam&#8221; &#8212; Travelstart Blog\" data-secret=\"xKVOF6eSbg\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/www.travelstart.co.za\/blog\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","thumbnail_url":"https:\/\/www.travelstart.co.za\/blog\/wp-content\/uploads\/sites\/5\/2025\/10\/vietman.jpg","thumbnail_width":800,"thumbnail_height":600,"description":"How could it be that the world&#8217;s largest cave was not discovered until&#8230;&#8230;&#8230;2009!? Well, it wasn&#8217;t really first discovered in 2009. As the story goes, back in 1991 a local man named H\u1ed3-Khanh discovered this remarkable cave deep within a forested national park in central Vietnam. In 2009 he would help guide a group of British scientists to the site, where they soon discovered that ... Read more"}