The hardest thing about this WHS is knowing where to start... and where to stop. It's not just enormous in terms of area, it has such an incredible amount of diversity. In some ways, it could easily be split into a few different World Heritage Sites, because each area has such unique aspects.
As a visitor, I think the best thing is to hire a car and take your time driving along the coast over a number of days, stopping for different walks and viewpoints.
One of the highlights (for me) was the glaciers - particularly Fox and Franz Josef. The sad things is that they are receding so quickly at the moment. Part of that is just the natural ebb and flow but the human-caused climate change is also having a big effect. I wonder how long they will last. Will there be a generation soon that won't be able to see this?!