This website will work completely offline for up to 14 days. Just visit all the pages you want on vacation and you a good to go!
This works on mobile phones, tablets and desktops. On a mobile phone only c. 150 MB space is taken for the entire site.
Using PWA (Progressive Web App") technology page load times have not only been made much faster, but you can save Reef Image-Stories as an app on the device screen. It then works outside a normal browser and is even faster.