We completed a 2 day, 36k (22 mile) hike on a trail called the Copland Track. We loved doing this hike because it was a good challenge for us, the scenery was beautiful and untouched, the river was so clean we were able to drink from it, there were some thermal pools at the end of it that were the best reward after a long 8 hour day of trekking, the hut we stayed in overnight was really nice, and we made friends with some German and French travelers who were staying at the hut with us. It was a beautiful sunny day on our first day, and we had lunch next to a beautiful turquoise freezing cold river. The second day was very wet and rainy, and we had a lot of deep rushing streams to cross. We were soaked from head to toe for the entire 18k back to our car. It was overall a unique experience.
There were two scary swing bridges like this one on the hike. You can see from the picture that there were 4 cables that served a walkway, which made for a bouncy, swinging crossing. We had to cross one at a time, and it took a few minutes to get all the way across. It was fun!