Blue Lake and Tasman Glacier (blue lake and tasman glacier). This trail is short walking time, with a climbing height of 100 meters and a round trip of 40 minutes. We walked on the trail with a heart that looked at the glacier. Totally unexpected results: Because the global warming icebergs melted, the Blue Lake here has not been able to supply the glacier water, from crystal clear blue to a stagnant water. However, the water quality of this beach is not bad, and it is a good place for swimming and picnics in summer. The glaciers seen at the end of the trail have also been reduced by 2km in the last 20 years, compared to the previous 100 years. All of these were learned on the introduction board at the end of the trail. Recalling that you are staying in New Zealand, you can see different channels promoting environmental protection resources. The most severe punishment of human beings invading nature is the devastating impact of nature on mankind.