But lest we cause them to fall, go to the lake and cast in a hook, and take up the first fish that comes up, and when you have opened his mouth, you will find a
silver stater
coin. Take that and give
it to them for you and me.”

“lake.” The Sea of Galilee, see context, Matt 17:24. They were in Capernaum, right beside the Sea of Galilee.