OK, so a little more detail. You don't have to do the whole 3 days - partial participation is welcome !
行程のイメージはこんな感じです。もちろん、部分的な参加 OK です!
2025/06/13(fri)
start from Tokyo
rock your brains out on rollercoasters at Nagashima Spa Land
stay at a cheap hotel in the vicinity
2025/06/14(sat)...