Maybe they don't like green and wet? Perhaps a drive through the most remote (from a freeway and associated stuff perspective) areas of our Country is in order?
Drive South from whatever major airport they pick, Boise, Potlandia, Seattle. Get to somewhere in E OR. head to the SE corner of that state. LOTS of open space and in May it will still be pleasant. There's a spot down there, near FrenchGlen I think, that's the furthest from a freeway of any place in the lower forty eight.
Horse sale in Juntura? Might be in June though.
So much territory, most of it public lands, and so little time.