A'ershan is both the name of a national park and the neighboring city in the Inner Mongolia province of China. The national park consists of beautiful tree covered volcanic mountains surrounding several blue crater lakes. Popular among domestic tourists but practically unheard of by foreigners. Unfortunately the park can only be reached and explored by private vehicle. This fact combined with it's remote location makes it an expensive visit.
Flora and fauna
Train 6341 runs from BaiCheng and goes through Ulanhot on it's way to the city of A'ershan.
The entry fee to the park is around 120 rmb, with discounts for students. The standard rate for hiring a taxi from A'ershan city for the day to bring you to and around the park is 400 rmb (regardless of the number of passengers). They run a tight taxi mafia in that town so you're unlikely to get a cheaper price, even if you're Chinese.
The city of A'ershan is very tiny and easily walkable, though there are taxis if you want one. There's no buses or metro system. All the main sights in the national park are spread quite far apart and there's no hiking trails between them unfortunately.
The main attractions in the national park are crater lakes, but after a while they all start to look the same.
A'ershan has way too many over-size pastel colored victorian style hotels, where you're more than welcome to negotiate a price. If you walk down the main street which parallels the street that the railway station is on, you can find some smaller hotels which might offer a better price. Expect to pay around 140rmb per night for a double room.
Go to Ulanhot, Chifeng or BaiCheng.