Fly into one of two airports:
Seattle-Tacoma International Airport (SeaTac, airport code SEA) is the largest regional airport. The airport is a three hour drive from the race course.
Bellingham International Airport (BLI) is approximately 2 hours from the put in.
Major rental car agencies have cars available at both airports, and pick up may be available depending on schedule and flight times.
Link to Web Cam near the put in:Web Cam with Current Weather too!