正確には『沼津・湯河原温泉 万葉の湯』だそうです。
すぐ隣に道の駅もあって、おみやげを買うにはちょうどいい場所ですね。
ちなみに昨日の４コマで言ってた食べ放題屋は終了してました(笑)

To be exact, it's the Numazu Yugawara Hot Springs Man'you Baths, I hear. There's a roadside rest station right next to it, so it's a perfect place to buy souvenirs.

By the way, the all-you-can-eat place I mentioned in yesterday's strip was closed. :-)