Lance C.
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The entrance is FREE. You are able to register yourself at the entrance, although the number of visitors are limited per day. During holidays, it is guaranteed to run out, so register early. You can register via Alipay mini app or the official website. Original passport during visit is a must.
About the temple complex, it had 3 main parts, a garden, the stone sculpture park (fei lai peak), and the Lingyin temple. Lingyin temple is a wealthy and large temple with impressive display of various Buddhas, including a magnificent large wall of thousands of Buddha carvings. Imagine the Paris Notre Dame, but about twice as large over 3 different levels accessible by stairs.
At the foot is a stone sculpture part with multuple carvings, dating 500 - 1,100 years old.
Suggested planned visit of 4 hours for a full visit. 2 hours if you only do the temple.