DC area native.
Some terms that are different in American English that you should know when posting or reading: Trekking - Backpacking Backpacking - Budget travel (and this usually means motels rather than hostels/camping) Hiring a car/van - We "rent" cars (and other things), and "hire" drivers (and other people). Campervan - Recreational Vehicle (RV), class B (but use "RV" and we think class A, a bus sized vehicle). Return - Round-trip ("return" suggests you want to return home, one-way). Internal flight - Domestic flight