i live here in the "boonies" LOL
http://www.sotodannetsu.com/sports01f.htm^^^ is a list of parks in kyushu/ okinawa but you're gunna need some kanji skills to navigate it.
wait! this guy translated it:
http://elevatedtracks.blogspot.jp/2010/08/japanese-skatepark-listing.html- fukuoka is the bomb for street skating (kumamoto also has some nice street spots). fukuoka is far from being the boonies though. there is a bowl-orientated park in koga city too.
- nagasaki has a few good parks.
http://skate-stream.com/park/park-nagasaki/nagasaki-oee/ (search for the element videos from when they toured).
- miyazaki is a bit of a surfing prefecture but also has a few little parks.
http://www.kumaya.jp/atikoti107.html- oita is pretty dead (where i live now
).
- kagoshima doesn't have a park per se but lots of street spots (most of them hidden/ hard to access though). watch out! that ash is slippery
- saga has ... well no one ever goes to saga (poor saga) but i think there is a shop called "junk trap" that has a mini ramp.
as for things to do/ places to see: pm me and tell where you plan on going