Does the 999-step ladder really exist?

Tianmen Mountain, formerly known as Songliang Mountain, is located at No. 11 Dayong Middle Road, Yongding District, Zhangjiajie City, Hunan Province. It is said that there is a gate to heaven here, and crossing the 999-step ladder can cross the hardships of life. Tianmen Cave is the highest natural mountain cave in the world, and below is the 999-step ladder. Coming to Tianmen Mountain is to challenge this ladder. After walking 999 steps, you can look back at the beautiful scenery. Here is surrounded by clouds all year round, the scenery of the sea of clouds changes endlessly, combining peaks, stones, springs, streams, clouds, and forests into one, integrating majesty, strangeness, beauty, danger, and seclusion into one, and is known as the original garden in the sky!