The first week of April is also Easter week and the Sevier Co. school system is out for Spring Break. I do not know about Blount Co. The campgrounds in the park can get kind of crowded but the fishing is usually very good. I would suggest not scheduling a cookout over a Holiday weekend. I would like to do this though, The Little River TU chapter used to have a cookout and member fish with new member day, and it was alot of fun. Metcalf Bottoms has the best facility for group cookouts and it can be reserved. Make sure you bring your Quill Gordens and your favorite Dry fly rod!