1.0Naturheltenhttps://naturhelten.dk/en/Adminhttps://naturhelten.dk/en/author/admin/rich600338<blockquote class="wp-embedded-content" data-secret="LXq76pfLZS"><a href="https://naturhelten.dk/en/study-trips/biology/secrets-of-the-sea/">Secrets of the Sea</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://naturhelten.dk/en/study-trips/biology/secrets-of-the-sea/embed/#?secret=LXq76pfLZS" width="600" height="338" title="“Secrets of the Sea” — Naturhelten" data-secret="LXq76pfLZS" 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://naturhelten.dk/wp-includes/js/wp-embed.min.js </script> https://naturhelten.dk/wp-content/uploads/2025/04/IMG_2399-1-scaled.jpeg20481536Pirate towers, sea creatures, and teamwork Approx. 4-5 hours. Tour length: 5-8 km at a leisurely pace with breaks. Old pirate towers and close study of sea creatures. The students will be able to freely use various materials for the investigations on the tours to shed light on the included learning objectives, observations, empiricism, modeling ... Read more