Obviously biased but .... You can do a lot of different streams and specilizations in geography and earth science. I don`t take many geography classes but if you like meterology, hydrogeology, biology, chemistry, or even just rocks, there are several courses pertaining to each interest. I say you take a first year class, see where your interests lie and then take some upper year classes.
If you asking about the easiness of the classes well, it widely varies. Some are rather difficult and challenging while other require almost no work. The program is very choice oriented.