Not sure it is Street
If your sense of what constitutes "street" requires the presence of a street (or some other urban locale), I guess I would have to concede the point.
I tend to use a more expansive definition.* I think of street photographs as images of people (and perhaps animals or artifacts) interacting with their environment (regardless of the locale) in a way that evokes a narrative (which may vary with different viewers) rather than a literal statement of fact (i.e., "this is exactly and only what happened to be in front of the lens when the shutter was snapped").
In this case, the narrative—at least,
my personal narrative—is that the little boy was challenging the waves to reach him. That's why I titled the photo
Defiance!But perhaps that's demanding too much of this image. I watched the young man playing at the edge of the surf over several minutes. My opinion of what he was doing—the
narrative—was undoubtedly influenced by seeing the way he would sidle up to the water's edge, wait for a wave, then back away ... before starting the process all over again.
That's my story, and I'm sticking with it.
Of course, if you don't accept the narrative definition of street photography, all of that is irrelevant. And even if you do, you're welcome to come up with your own narrative. I would never presume to speak for my pictures.
“When I use a word,” Humpty Dumpty said, in rather a scornful tone, “it means just what I choose it to mean—neither more nor less.”
“The question is,” said Alice, “whether you can make words mean so many different things.”
“The question is,” said Humpty Dumpty, “which is to be master—that’s all.”