The recommended route is #6 on the new map in the picture above. On the SPI side it appears to be between Beach Access 5 & 6. On the mainland side it appears to be on the north side of Holly Beach. It is rumored that Route #1might be better because it does not link back to Hwy 100. It stretches to Hwy 77 instead.
As you can see, there is not a final decision on the route, only a “recommended preferred alternative.” The final decision is still pending environmental issues.