In this episode of The BiG Scuba Podcast, Gemma and Ian catch up with a former guest, Autum Blum. She is the founder of Stream2Sea and a passionate diver, cosmetic chemist and ocean advocate.

Autumn shares the story behind Stream2Sea and the moment a dive in Palau made her question what we were putting into our oceans through sunscreens, shampoos and personal care products.

We chat about reef-safe claims, aquatic toxicity, marine-friendly ingredients, sustainable packaging and why reading the ingredients on your sunscreen really matters. Autumn also talks about her passion for diving, shark diving, technical diving, the Women Divers Hall of Fame and her hopes to experience UK cold-water diving.

A fascinating conversation about diving, science and protecting the water we love.

Whether you are already a diver, a keen snorkeler or simply curious about exploring beneath the surface, this episode is packed with inspiration and a reminder of why we love the ocean and the amazing community that surrounds it.

If you enjoy the episode, please subscribe, leave us a review and share The BiG Scuba Podcast with your dive buddies. Your support helps us continue sharing inspiring stories from the underwater world.

Stream2Sea are offering a 20% discount on all purchases up until 13 September 2026 by using the code BIGSCUBA and after that 10% discount.

You can access the following sites :
Europe https://stream2sea.net/

USA/Worldwide https://stream2sea.com/



The BiG Scuba Podcast is proudly supported by Narked at 90 – "Beyond Technical." Whether you're new to diving or thinking about moving into tech, they can help guide you with the best kit and advice.

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