No Tan Line

Two facts: this is not a nude beach; he is wearing a thong.

Third fact: parents were guiding their children away from him.

[Junko Y]

Here in Germany, there are many places where it's perfectly normal to swim/tan nude, even without a thong!

[J A Byrdlip]

There was a family that was swimming at Banks Lake yesterday, and the all changed from swim suites to street close right there on the beach. I don't think they were from the US, so it must have been normal for them.