Need to go try out the new fly rod

[Mediumheavyaction6'6]

i am going to go to "Da Pen" since i am going to make the trip alone. I have gone out of Da Pen and tried to fish some of the marsh outside of it but it is full of grass just under the surface of the water. Does anyone know of some other marsh outside of Da Pen that may have some better fishability? I was looking at the map and it looks like I can go out under Hwy 47 and get into some other marsh. Any advice for me would be great. I want to get a chance at some reds with the fly rod but I don't want to go too far from home or out too far in the marsh by myself.