If you are planning on bringing a rod, there is plenty of great fishing in the area. First, and closest, is Fishing Creek. This creek is PFCB stocked for most of its length, at Grassmere Park approx. 30 miles north of Bloomsburg, close enough for an evening, the East and West branches converge. That's all I know about the creek as I have never fished it.
Further north and east Mehoopany Creek runs 10 miles through State Game Land 57. The best fishing on the upper half, tributaries provide cold water, natives and browns. Fished it this past summer, tons of fun.
To the west is a nice day trip. It is approx. 80 miles to Penns Creek. Near the town of Weikert, Cherry Run enters the creek and from there upstream is a 3.9 mile section of Catch and Release. From Swift Run to Coburn it's All Tackle Trophy Trout. The added bonus is, with a short rod, natives can be taken in Cherry Run. Penns Creek is a wide stream and the scenery you just gotta see. On the downside, if it is a dry summer, the water gets very very thin.
To the south is Clarks Creek. Good access it's entire length and a 2.4 mile Catch and Release Flyfishing Only section. If you want a real challenge this is a good one. Clear water, steep banks, light lines, long leaders and light tippet. That's below the reservoir. Above, it's all of that, narrow and tree lined. Did I mention Copperheads ? Lots of Copperheads. We fished Clarks for a weekend two summers ago, although there were many others on the creek, we left there grinnin'.
If anybody wants to spend a day or evening on a stream, as the Rally nears, plans can be made. If you are more local than I to Bloomsburg and have a favorite creek, tell us about it.