You step out of your Guangzhou hotel before dawn and the highway takes you north, the city skylines shrinking as karst-like ridges and red sandstone cliffs rise ahead. On day one the trail into Gulong Canyon opens with the rush of multiple falls — the Nine-waterfall threads down rock into jade pools — then the route turns toward the hair-raising glass features: a 520 m glass walkway, a 329 m glass bridge and the 202 m Glass UFO platform suspended roughly 72 m over the canyon. Nature here dares you to look down and keeps rewarding you for looking up.