BC is a big place... can you be a bit more specific?
Generally anywhere with water, lots of green grass and sun is a good spot for blackies early season. Late April - mid May is best for most areas in south BC.
Later in the season bears are best found around food sources. Look for skunk cabbage, cow parsnip, spring berries or other types of food. Get a pair of binos and a comfy seat and spend a lot of time spotting for good bears, since there are lots of large males to be had.