Penny & Steve at the Floating Mountains

Penny sent me this photo (and the extra). They have flown 1.5 hours to "The Zhangjiajie National Forest Park (Chinese: 湖南张家界国家森林公园; pinyin: Húnán Zhāngjiājiè Guójiā Sēnlín Gōngyuán; literally: "Hunan Zhangjiajie National Forest Park") is a unique national forest park located in Zhangjiajie City in northern Hunan Province in PRC. I wondered what forces produced these amazing formations. But apparently it is physical erosion, weathering and the effect of the plants that grow there: https://en.wikipedia.org/wiki/Zhangjiajie_National_Forest_Park