I like the simplicity of the MO Outdoors app. A GPS enabled map is included. An OA app, may have species of fish links, or make fishing locations as a menu. It could have a journal that was only available to the user, with the option of making individual entries public. I like the suggestion of current water level and temp.
An option for products for purchase sounds neat, or a cart option for when someone arrives at Lilley's Landing. Kind of a wishlist of sorts.
I agree with more visual than text. Short attention spans nowadays.