I think that serious bikers should avoid Grayton, Watercolor, Seaside, and Seagrove. There is just not enough space, and vehicles have no respect for bikers and walkers. That's why I beat on hoods.
They should do like people do in our town in GA. We have the most fabulous walking path ever in our neighborhood. People park at the public school nearby, walk a 10K, and walk safely.
Bikers can park at Deer Lake, bike east, and get a good workout. Of course, that depends on how many miles thet want to bike. I have seen lots of bikers on Highway 79. It's pretty empty except on checkin/out days and 4-5 PM.