At the initial coordinates, you can find a big message panel. The panel describes the ledgend of a big crab in this pond, however written in Japanese only. (Summary: a Kappa was in Kamegaike pond. Another pond in next region, a big crab was lived. the crab grew up too big to live in his pond. Tha crab and the kappa were swapped their living place. After the crab moved to Kamegaike pond, people was sufferred. A shinto priest closed the crab in the bottom of the pond. After that, people held a ceremony to keep the crab closing. The latter description is why biotope made and collaboration to keep biodiversity both of Kamegaike pond and the pond kappa moved.)
Please find 4-digits at the center of the panel. The ceremony was held until this year = ABCD.
Calculate X = A - D, Y = B - C.
Final coordinate is
N 33 27.9 (Y+1) (X) E 132 16.9 (Y) (Y*2)
Next to the pond, there was hot spring. You can also enjoy Onsen!
===Japanese===
2ステージの短い簡単なマルチキャッシュです．
最初の座標に亀ケ池の大ガニ伝説について書かれています．まんなかあたりの牛鬼わたりのお祭りがいつまで行われていたのか，西暦の年号を得てください．ABCDとします． X = A - D, Y = B - Cの式で求めてください．
コンテナはN 33 27.9 (Y+1) (X) E 132 16.9 (Y) (Y*2) に隠しました．
池の隣には温泉施設があります．こちらも楽しんでみてはいかがでしょうか．