If this is a bit off-topic then I apologize in advance.
If one is going off-shore, then I can definitely see why mastering celestial navigation is a VERY good idea.
However, for coastal cruising in the PNW, piloting skills are a must. CPS and Cdn. Yachting Assn both offer excellent courses.
While I remain fascinated by celestial navigation, it is usually too cloudy here in the rain forest.