Vampire Diaries star Nina Dobrev is known for her fabulous red carpet style, her body positivity, and most recently, being an Oceana ambassador. We’re super-grateful for all three, but especially the activism part.

We love celebrities who put their money and time where their mouths are, like Ryan Reynolds and Rihanna. Nina joins pretty good company. The former Degrassi: Next Generation alum recently took over our cause partner’s Instagram to spread awareness about protecting sharks and their habitats.

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Hi everybody — @nina here! I’m taking over @Oceana’s Insta to share some behind-the-scenes peeks at my recent trip down to Bimini with Oceana … and sharks! You may know me from my roles in The Vampires Diaries, but you may not know about my passion for saving sharks and our oceans. It was an amazing time swimming and coexisting with sharks. Stay tuned today as I share more sharky goodness. 📷: Pete Zuccarini / @sharkweek #FinBanNow #SaveSharks

A post shared by Oceana (@oceana) on Jul 24, 2017 at 7:20am PDT

Nina and Oceana are demanding Congress ban the trade of shark fins in the United States. Sign and share their petition to do your part and use the #FinBanNow on social media!

Everyone's voice matters. Use yours to demand a #FinBanNow with me and @oceana https://t.co/RTAkv65HyE pic.twitter.com/VXDH2N2xpL

— Nina Dobrev (@ninadobrev) July 26, 2017

Want to see more? Watch Nina’s work in Hawaii for Oceana to learn even more about the campaign.

Nina’s using her millions of followers to spread the word on shark protection, and for that we have nothing but gratitude. We send a huge Thanks to Nina for all she does to protect marine life and not just because saying thanks is good for our health.

Want to heed Nina and Oceana’s call to protect the ocean life? Find more ways to plug into marine conservation and meet other passionate people on ThatHelps’ app.