When linking to an internal page you should use a relative path such as /gallery/.
General - Image links
The image link feature allows you to turn images on a page in to custom links to either internal or external pages.
![](https://cache.media.digitalphotogallery.com/hyqelgcvfopo/images/ce2911f4-c7e8-11e6-bd34-56388aee727f/363_support.jpg?generated=20161222014907)
When linking to an external website make sure that you enter the full URL including the http:// or https:// prefix.