I will be travaling to Washington DC for 6 days, and trying to figure out how to best get around in the city. I very much like the idea of not having to worry about buying tickets for each single trip, but to instead to simply "hop on, hop off" while exploring the city.
I found the following website that describes the passes available for the public transport system, and I am looking at the 7-day passes in particular: https://www.wmata.com/fares/farecard-options.cfm
However, I could not figure out if metro rail and metro bus are completely separate systems when it comes to the 7-day pases. If I want to ride metro AND bus, do I need both 7-day passes? Or does the more expensive one (rail) also cover bus trips?