A Virginia dad says he and his 6-year-old son made a prehistoric find during a recent trip to a South Carolina beach.

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According to WSET-TV, Brandon Overstreet and his son, Luke, of Bedford, Virginia, were searching for shark teeth at Myrtle Beach when they discovered what appeared to be a megalodon tooth.

"On our annual trip to Myrtle Beach, me and Luke always look for shark teeth. It's just our thing," Overstreet wrote Monday in a Facebook post. "Well, we stumbled upon a giant in the shell beds just outside of our hotel. Definitely a memory to last a lifetime!"

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According to the Florida Museum, the massive predators were "the largest shark to ever live in our oceans" and have been extinct for 2.6 million years.

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This Aug. 21, 2015, file photo shows a giant tooth believed to be that of a megalodon shark.

Credit: AFP/Getty Images

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Credit: AFP/Getty Images