We stayed at Kulik lodge which is a fishing lodge. They offer daily sea plane excursions to Brooks. We were able to spend most of the day at the falls plus the lodge is great even for unexperienced fishermen. I recommend going more than once throughout your stay. for example 2 days out of 3.
Got run off the river while flyfishing upstream from the falls by the biggest Brown Bear we saw on our trip. He decide where I was was where he wanted to be. I made an exit to the bank and he promptly caught a huge King salmon. My fish!!! I have always loved the "No Bears" sign on the viewing bleachers.