Just to warn people not to go here (as if you would anyway!), because due to earthquakes and a lack of popularity, Nagaoka ski-jo has closed.
In case it ever re-opens, this is only worth visiting if a. you live within 30 mins and b. you are a beginner. I learned to turn on the flat slopes here last year, so it was a useful visit. Unfortunately, the top half isn't open to boarders.
Just thought I would write about this place for the laughs! Tiny tiny tiny place near the center of Nagaoka - hey I live just 300 meters away - with a short baby slope to enjoy. If you are a skier or boarder looking for a challenge......!! (Don't come here!). But lovely people running the place!