• Snorkel Instructor

    BSAC Qualified | Registered BSAC Snorkel Centre

  • Speaking and Presenting

    BBC | Kendal Mountain Festival

  • Seal Picture




Cornwall BSAC snorkel instructor & registered snorkel centre, speaker and presenter, marine mammal medic rescues with the British Diver Marine Life Rescue (BDMLR) and conservation work with the Mounts Bay Marine Group.

Join me on a Snorkelling Experience!

Join me, a BSAC qualified Snorkel Instructor at low tide for a memorable Cornish snorkelling experience.

What people are saying!

  • "Lovely and fascinating experience. Katie is a mine of information about sealife and she guided us well throughout . Wonderful."
  • "Amazing experience! Opened up a whole new world beneath the surface! Katie is extremely knowledgeable and has hugely increased my confidence, changing my entire approach to snorkeling and turning it into such a rewarding experience. Whether you are experienced or a novice I cannot recommend enough. Thanks again Katie."
  • "Had the most amazing experience snorkelling with Katie. She is so knowledgeable on the beautiful plants and animals and her enthusiasm is catching. This is a must do as it was like being in an underwater fantasy garden, the colours of the plants and sea life was spectacular. Thanks Katie you are brilliant. "
  • "Our time in the water with Katie was simply magical! She is the most welcoming and loveliest instructor, who’s completely attentive to your needs. The experience itself was incredible, and even though I’m a complete snorkelling novice I was surprised how quickly it took me to feel at ease and simply enjoy the wonderful underwater world around us! We can’t wait to get back in the water! "
  • "Amazing experience - a new world under the water. If you aren’t sure - give it a go - can’t wait to return - thank you Katie x"
  • "Absolutely lovely, magical Snorkel, the seaweed is like swimming through a fantasy world. Katie found us spider crabs, beautiful jellies and lots of wrass. So good to be snorkelling after nearly 4 years of not diving. "
  • "An amazing experience for both of us - Thank you for sharing your knowledge and passion of the sea and for making us feel safe and comfortable in the water. We saw so much we were not expecting to and we can’t wait to go again. Thanks again and hope to see you soon - happy bubbles!!!!"
  • "The snorkel safari was brilliant a great experience for the whole family. We had no idea there was so much to discover in the water around mount’s bay… so many sea creatures and beautiful colours you felt like you were discovering a secret world. Katie is a fantastic guide she is so knowledgeable and enthusiastic we learnt so much from her. We cannot wait to book again Thanks katie "
  • "An experience I will never forget! Katie made me feel calm and confident with the equipment, techniques and the areas we snorkelled in. I learnt so much and feel I can now go out snorkelling alone and find under water treasures. Thanks Katie! Highly recommended"
  • "Such a lovely morning- it was so interesting and so beautiful and right from the start Katie is so warm and welcoming and reassuring. She is absolutely the perfect person to be showing people this gorgeous world under the waves:) xx"

NEW: I am now offering snorkelling as part of wellbeing retreats

My Image
  • Follow Me @tonicofthesea

    Follow my journey of sea swimming and snorkelling whilst learning about the wonders of our Cornish marine life through my underwater photography, my work as a Marine Mammal Medic for the British Divers Marine Life Rescue and conservation role with the Mounts Bay Marine Group.

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