Fake Shark Fins Spotted at San Antonio River Walk

Stunt promotes upcoming Netflix thriller 'Thrash'

Apr. 10, 2026 at 1:06am

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An extreme graphic illustration of sharp, angular black shark fin silhouettes cutting through a bright red and white background, creating a bold, unsettling visual metaphor for the upcoming thriller film 'Thrash'.A daring viral stunt brings the terror of 'Thrash' to life on the San Antonio River Walk.San Antonio Today

Remote-controlled shark fins were spotted circling the San Antonio River Walk, a popular tourist destination, in a stunt to promote the upcoming Netflix survival thriller film 'Thrash'. The stunt was designed to generate excitement and buzz around the new movie, which features a plot involving deadly shark attacks.

Why it matters

Viral marketing stunts like this are becoming increasingly common as studios look for creative ways to stand out and promote new films. While some may find the stunt gimmicky, it does effectively capture attention and get people talking about the upcoming movie release.

The details

The shark fin stunt at the San Antonio River Walk involved using remote-controlled devices to make it appear as if real sharks were swimming in the water. This created a sense of unease and danger for onlookers, mirroring the themes and tone of the 'Thrash' film. The stunt was coordinated with local authorities to ensure public safety.

  • The shark fin stunt took place on April 5, 2026 at the San Antonio River Walk.

The players

Netflix

The streaming platform that is releasing the upcoming thriller film 'Thrash'.

San Antonio River Walk

A popular tourist destination in San Antonio, Texas where the shark fin stunt was staged.

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What they’re saying

“Seeing those shark fins in the water was really unsettling, but also kind of cool. It definitely got my attention and made me want to check out this new 'Thrash' movie.”

— Samantha Rodriguez, San Antonio resident

The takeaway

Viral marketing stunts like this shark fin prank demonstrate how far studios will go to generate buzz and excitement around new film releases. While some may find these tactics gimmicky, they can be effective at capturing public attention and driving interest in upcoming movies.