This is a climbing wall in the middle of the city. I am listing it here because it is the best place to meet other local climbers and get current beta. It is also quite close to the Central Business District and tourist sites if you are just in town for a short trip.
The wall is in the north-east corner of the park about 200 feet east of the central altar.
RiTan park is in the JianGuoMen Embassy district. It is very close to Silk Street market and on the same street as the Indian Embassy among other embassies which I do not remember.(the North Korean embassy is also nearby)