The Poly buildings with DSA's "connected" are:
Tuvalu: 3rd Floor
Fiji: 2nd Floor
Aotearo: 2nd Floor
As Mary2e said, these buildings are closest to the Luau Cove.

It would infact be extremely convienent if you were to be placed in one of those buildings. All 3 offer garden view rooms, 2 offer Lagoon view, and 1 offers MK view rooms.
Krbq:
I tried to find some pictures of this area, but had very little success. From exterior photos, it is a recessed balcony with tile flooring with tables and chairs. There are several large glass doors that open to 3rd floor foyer of the lobby. I hope your able to work something out!