Gorkhi-Terelj National Park
It's a rather mountainous area with a beautiful river, forests and some interestingly shaped rocks.
Flora and fauna
There is a bus from Ulaanbaatar to the park.
It leaves from a bus stop on the south side of Peace Avenue, opposite of the big 'Narantuul Hotel', 150 meters East of the junction with Ondor Gegeen Zanabazaryn Gudamj, which is the road that runs south from Gandan Khiid. The bus waits at the east end of the bus stop. The bus stops on every bus stop on the Peace Avenue on the way to/from park.
Buses number XO:4 leave at 16:00pm only, and take 2 1/2 hours to get to Terelj village.it will stop next to Turtle Rock. (September 2016)
Coming back, they leave Terelj village at the uncivilised hours of 08:00am and 19:00pm. The bus costs 2500 MNT one way.
The road is paved all the way, fine for cars. Lots of UB residents come for the weekend, so you can probably find a ride back to UB pretty easily. Offer to help pay for petrol.
3000 MNT payable at the national park gate, 6km from the turnoff for the park road.
The easiest way is to hitchhike around the park. If the driver wants cash, just wait for another car, people will take you for free. (We hitchhiked from Turtle Rock to Chinggis Khaan Statue and back to Ulaanbataar with no problems at all. September 2016)
Trekking, Horse riding.
There are a couple of standard shops in Terelj village and Mini market next to Turtle rock, if you want to stock up on bottled water, biscuits, vodka, etc. Tourist camps sell stuff as well but will have less variety and higher prices.
Sleeping in local ger camp shoudl be 10 000 per person per night without food. (September 2016)