Planning is essential as there isn't a lot of accomodation especially in August, it's also not a ride for the faint of heart given all the huge logging trucks with bits of tree bark flying off them and oversized motorhomes wanting to squeeze you onto the, sometimes only, 6 inch verge. The best oysters I've had were in Oysterville fresh out of the water, and the Tokeland Hotel is a great little restored Victorian place that likes cyclists and serves great breakfasts. Ocean Shores has a great beach and is very touristy so probably easier to find a place to stay. If you're not into making reservations then a tent and sleeping bag would be the only way to go. It's well worth the trip though, lots of rugged scenery and quite a bit of ocean access. The last time I was there the roads were in great shape, so you'd be fine on a road bike. There are lots of cyclists who do this route so you wouldn't be alone but at the same time there aren't a lot of cycle shops around so carry the essentials.