Next month, I'm planning to hire a car and drive from Vancouver to the Boeing factory north of Seattle. My GPS suggests the trip is about 200km and should take around 2 hours. I'm not sure whether this takes into account the border crossing time so I need to allow for this but I have no idea how long to allow. I plan to travel on a weekday, and avoid peak hour at the crossing (? after 9am); can anyone give me a rough idea as to how much time I should allow for the crossing?

On the way back to Vancouver, when is the best time to cross to avoid the traffic? (hope to cross back before it gets dark as it is a route that I am not familiar with at all - relying on a GPS).

Also, with an Australian passport, do you know if there any any forms we need to fill in at the border? and if using a hire car, anything in particular I need to bring from the hire car company to ensure a hassle free crossing?

thanks in advance for your advice and help!