The free pass wide coverage version at Y1600 include buses to Yufuin but does it cover both the buses below?
http://www.kamenoibus.com/data/kamenoibus_rosen_yufuin.pdf
Separately, do the city buses that gofrom Beppu west exit to kannawa or umi jigoku start service as early as 7am on weekends? I went to kamenoi bus website but cannot find the starting times.