About 12 kilometers from the city, you can take the 9 bus to go there, go back to the city at 5 o'clock in the last class, tickets can be set a few yuan cheaper from the Internet, the door is called spring, there is free explanation in the hole, half an hour, this hole is a water hole, the scenery is good, you can return the same way after an hour, Good physical strength can not go back, go directly from another exit, go out is a crater, the rest have no other scenery, this door is a one-way only can not get in, go to the top of the mountain Panshan Road down the mountain to the parking lot.