Buses from Naha to Nago

Can anybody tell me Which bus to get from Naha to Nago. I have found that it could be one or more of these. 111, 20 or 120?

I also want to go from Nago to Yagachi beach camp site and have found that I need to go from Nago toward yagaham bus stop but don't know the number of the bus, any help appreciated.

Line 111 is the highway bus. There are other lines, but they don't use the expressway, resulting in a considerably longer travel duration.

Here is the timetable:
http://www.rosenbus.com/TimeTBL/No111.html

Any ideas about getting from nago bus terminal to yagachi beach camp site? I read the bus goes toward yagahama bus stop but am unsure of what bus. Is it bus 72?

Thanks

Yes, it seems to be bus number 72:
http://www.rosenbus.com/TimeTBL/No072.html