Gallery to gallery navigation?

I’m using your High End Theme for Word Press and having difficulty linking up the Portfolios and Galleries I’ve created. I’ve had to add the links to sliders at the top of each portfolio page, to link into the gallery pages on the next level down. You can also navigate between portfolio pages by using categories to draw in the other portfolio pages at the bottom of each page.

I’d like to know how to link up the individual galleries and navigate between them. Is there a widget for this? The most obvious means of accessing material by linking between galleries would be to insert a Gallery Carousel at the base of each gallery page, however this feature doesn’t seem to have a purpose (Gallery Carousel just loads up a single image, no link). What is the easiest means of adding in navigation between the galleries?