Hi Ed en Myrthe,
We don’t have the guidebook but I just wanted to say that in some of the road sections between Portland Oregon and Los Angeles California - the coastal road is very narrow and there is no shoulder. Since you will probably be towing a trailer with your two kids in it – try to find out beforehand which sections are narrow and avoid cycling them during the weekends when the coastal road is full of people taking a “day trip” in their cars.
Travelling two also has covered the west coast road in a 10 questions: cycling from Canada to Mexico interview in their blog. http://travellingtwo.com/resources/10qu ... -to-mexico