Wudalian Chi
Volcanic lake surrounded by forests and small farming communities a train and bus ride away from Harbin. Take the train to Dedu and then a 2 hour bus ride to the lake.
Zhalong National Nature Reserve
Huge bird preserve near the city of QiQihaer, can be reached by a short 5 hour train ride from Harbin.
Dalian
Dongbei's most modern and cleanest city, right on the coast. A great weekend getaway if you are in Harbin for an extended period of time and looking to catch some fresh seaside air
Mudanjiang and surrounding areas
This is a short train ride from Harbin and within short bus rides you can reach Mirror Lake, the Underground Forests, and the Yabuli ski resort.
Hulunbeier Grasslands
Take the train to Hailaer and under 12 hours overnight you can find yourself on some of the world's biggest grasslands, stunningly beautiful. Summer is the best time to go.