There's a road that dead ends on the property. There are Adirondack chairs and a rocky shore and a picnic table for use right off the road. I can't see why you couldn't use that area, but why don't you call to be sure?
There is also a Marina right there. They offer kayaking excursion thru DVC. Ours was canceled due to weather, but I was told we would be leaving from the marina.
I saw tons of people kayaking around the all the resorts in the area, it is surrounded by water.