Ill be travelling on the east coast before this Californian one! so I'm in new york and up into Canada and back around through Philly and Washington. I can't wait it will be an awesome trip including this California one as well! Im travelling Solo as well from Brisbane, Qld.
I definitely recommend New York, Niagara Falls (canadian side) I haven't done much else on the east coast which is why i am doing this trip. There is so much i wanna do and see in the US tho! i will be back for me one day
Hope this Helps!