None of the rooms will really have a view of the marina from the balcony. The choices are pool view, marsh view or island view.
The marsh view has a nice look at Broad Creek, which has tidal changes and sometimes will find dolphin and otter to watch.
The island view will see wooded areas of the island itself and other buildings.
The pool view will overlook the resort pool.
All views are nice, so pick what type of scenery you'd enjoy the most. There are no studios, 1BR's or GV's with a pool view. Except for 5 studios and 5 1BR's- all others (21) are in the lodge- building 11,13.
Enjoy!