1.0PAPERSKYhttps://papersky.jp/en/Akirahttps://papersky.jp/en/author/akira/rich600338<blockquote class="wp-embedded-content" data-secret="IwLSJoHrrr"><a href="https://papersky.jp/en/onsen-ume-01/">Hanayama Onsen – Yakushi no Yu<br>Ume Boys</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://papersky.jp/en/onsen-ume-01/embed/#?secret=IwLSJoHrrr" width="600" height="338" title="“Hanayama Onsen – Yakushi no Yu<br>Ume Boys” — PAPERSKY" data-secret="IwLSJoHrrr" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !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); //# sourceURL=https://papersky.jp/wp-includes/js/wp-embed.min.js </script> https://papersky.jp/wp-content/uploads/2026/06/DSCF1527_01.jpg20001333A regular I met in the bath told me, “This onsen is the reason I decided to move here from Kobe.”Powerful enough to inspire a change of address, Hanayama Onsen Yakushi no Yu is a free-flowing hot spring often called the strongest in Kansai. Its highly concentrated carbonated spring water rises naturally from around 500 meters underground, pushed up by the pressure of natural carbon dioxide gas.