Really they were 
rather disappointing though - and only able to do class b visits even though one 
was dry and, according to the best topos I can find (from http://watchizu.gsi.go.jp/ - 1:25000 
- and they are even georeferenced on the WGS84 datum!), on a road. There were 
absolutely no indications of prefectural boundaries (other than occasional road 
signs some distance after the actual borders) - not even road surface 
changes. 
 
I did go for the 
"low hanging fruit" - these were only a couple of km from each other, not 
requiring extensive hiking in the hills or anything.
 
They are 
Ibaraki-Saitama-Tochigi (wet) and Gunma-Saitama-Tochigi (dry). BTW - I 
noticed that all Romanji renderings on signs around here use the spelling Gunma 
rather than Gumma. No doubt alethiak will come up with the "correct" 
abbreviations for these locations.
 
Pictures will be 
posted later as it is time for bed now here in "UTC+ 9 hours" 
land.
 
Cheers
 
Hugh