If you want to find real serenity on Putuoshan, I recommend taking a shuttle bus to the Gu Fo Dong, 古佛洞.
This is the Ancesteral Buddha Cave.
A renovated temple is built around the ancient cave.
We were the only ones there for a while, right on the ocean!
The Buddha in the entrance shrine has the best view around.

I also recommend sipping tea at the Chaoyang Dong, 潮阳洞.
The last photo is taken from the cave under the tea house, sweet views, check it out!