Find yourself a good pond. They're surprisingly all around you in neighborhood parks, or on private land (just be sure to ask for the land owner's permission first) & give it a go. Mostly right now you'll find the fish cruising around not far off the edges of ponds. The smaller fish come in to feed on the leaves & dead plants that have collected there, then the bigger fish come in to feed on them. This can lead to some very fun action.
If you don't have access to a pond or small lake, then find a good stretch of bass water on a river or stream. Often times this will be in some of the same locations where you were catching trout earlier in the year. Look for deeper water that has structure around it, like reed beds, or especially rocks. A rocky bottom mixed with some larger boulders & some under water ledges is perfect for bass.