The Grotto pool is in between, it may be a tad closer to the far west wing of the Dolphin than the Swan. So it's closer to the west end of the Swan than it is to the east end of the Dolphin. But we're talking under a few minutes walking distance. The hot tub is at the Grotto pool........
teh Swan does have it's own smaller pool, closer to it's lobby than the Grotto is to the Dolphin lobby.....
The laundry room is IN the Dolphin.......
The boat launch is exactly in between, but again it would be a tad bit further if you are at a far wing of the larger Dolphin, by a couple of minutes.
They each have their own bus stop...........
You didn't ask, but the Swan is closer to the Boardwalk than the Dolphin...