I fish both the walk-in and upriver often. Back hauling has become very lucrative, so there are many competing outfitters. I’ve seen countless children floating down in canoes and kayaks and do not consider it a dangerous activity. The wind can really screw with you, but you just have to wait it out.
Specific to the walk-in, it’s big water and can be frustrating. April and May are usually better than June, July, or August. The fall can be good as well! You need a good set of waders and to be able to effectively wait in position. Most importantly, make sure your flies are in the strike zone. This is the biggest trout river we have in the state and a great place to fish streamers with a sink tip! Spey or roll style casts will keep your back cast out of the bushes. I’ve tried a lot of flies in the river, but an olive crystal bugger always produces. The usual nymph rig works well too, just make sure it’s getting down to where the trout feed!