You must be 21-years-old or older to swim/drink from this river.

A hiker in Hawaii's Oahu island was walking around when he sniffed out a familiar smell... alcohol.

Oh, hello, old friend.

He followed his nose and it led him to stream 120 feet beneath a freeway.

Once the hiker discovered the boozy brook, he contacted a local environmental activist, who alerted the Department of Health (way to ruin all the fun).

"The other day we came here you would think it was a beer pub that hadn't opened its doors for three or four days," the activist, Carroll Cox, told HawaiiNewsNow.

A sample of the water was tested and it was found to contain 1.2 percent alcohol and .04 percent sugar – which is the same amount of alcohol in many low-ABV beers.

Bottoms up! 🍻

But of course we can't just have alcohol flowing freely. The Department of Health is now investigating how this body of water got so boozy.

They are looking at a spill from a Department of Transportation-owned storm pipe adjacent to the highway. The DOT has linked the spill to Hawaii's largest alcoholic beverage supplier, Paradise Beverages, which owns a warehouse across the freeway. But they are still unsure what is causing the spill.

Well, it may sound like a prank but it has me thinking...

Can fish get drunk?

If so, how drunk are they right now? 🤔