In a new People for the Ethical Treatment of Animals (PETA) advert, Sunderland’s Charlotte Crosby can be seen trapped in a water-filled tank.
The Just Tattoo of Us presenter who is best known for appearing in the MTV series Geordie Shore, has raised her concerns about confining natural marine mammals in such tanks.
Working with the animal rights organisation, Charlotte spoke about how the 2013 documentary Blackfish influenced the way she feels about SeaWorld.
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She said: "I would feel so claustrophobic being in such a small space.
“You would start to go a little bit insane. You’re just looking at the same place every single day and it’s not right. It’s not normal.
“Obviously, it's massively cruel, and I just want everyone to know that.
“When people are educated on that, it may change their minds to ever stepping in a park again."
In the advert, Charlotte can be seen wearing a t-shirt reading ‘SeaWorld sucks.’
She wore a black and white swimsuit as she posed under the water in a tank.
In the wild, orcas and bottlenose dolphins are known to swim up to 140 miles and 60 miles per day and can travel around 300 metres below the ocean's surface.
A spokesperson for PETA said: “At SeaWorld's parks, 140 dolphins are squeezed into just seven small tanks and can't escape attacks from other frustrated, aggressive dolphins.
“A recent expert report compiled by PETA US revealed that many dolphins at SeaWorld have open wounds and extensive scarring – yet trainers still ride on their backs and stand on their faces during sea-circus performances.”
Charlotte is one of many celebrities including Amanda Holden, Sharon Osbourne, Noah Cyrus and Paul O'Grady who have joined with PETA in a protest against animal cruelty.
A statement on SeaWorld’s website says: “Together we're going to protect marine life and the oceans they call home. Your visit to SeaWorld isn't just a chance to feel connected to the ocean and its creatures - it's a chance for you to play a part in protecting our planet.”