Hut near the top of the hill to look back inland at the flats below. Make sure you take a look at the large sand dune nearby. Can even see kiwi prints in the sand.
http://www.doc.govt.nz/parks-and-recreation/places-to-stay/backcountry-huts-by-region/southland/stewart-island-rakiura/big-hellfire-hut/
http://www.doc.govt.nz/parks-and-recreation/tracks-and-walks/southland/stewart-island-rakiura/north-west-circuit-stewart-island-rakiura/track-description/
The tracks that lead to these huts (if there are any) range from easy to extremely difficult. Some may be a day walk in, others for an overnight stay, while others will take multiple days. Back country skills may not always be needed but the majority will need some knowledge to take on the adventure. Huts can be busy places but some of the more isolated huts can be seldom visited. Because of this they can be on the DOC chopping block due to lack of funds. I am hoping that a series of geocaches at huts around the country may just encourage others to go to where few set foot.
To plan for your trips into the backcountry you can find a lot of information here. Always be prepared with the right equipment and food.
http://www.doc.govt.nz/parks-and-recreation/plan-and-prepare/safety-in-the-outdoors/
http://www.tramper.co.nz/
http://hutbagger.co.nz/
http://maps.doc.govt.nz/ A great resource to see locations of huts, tracks and other DOC related features.