Welcome to OFF. I'm jealous! That river, is on my bucketlist.
In low and / or clear water, think small OFFerings. In high and / or muddy water, think bigger lures, bait, etc. (If bait fishing is legal, of course). I'll defer to others, with experience on that river, with other ideas. Good luck.
P.S. Does granny have an extra guest room? :yikes:
P.P.S. EOBOY is right; this is THE month to bonk some smallies...and there are a lot of biggun's!