I couldn’t find anything in Japan – my Japanese isn’t that great, and search results are mainly about an apparently new fad called “water jump”, which seems to consist of riding a snowboard down a rather small ramp into a lake or pool.
Here’s two event agencies offering two-day ski jumping lessons in Germany or Austria:
Credit:stackoverflow.com‘
4 Mar, 2024
4 Mar, 2024
4 Mar, 2024
4 Mar, 2024
4 Mar, 2024