• Snorkel Instructor

    BSAC Qualified | Registered BSAC Snorkel Centre

  • Speaking and Presenting

    BBC | Kendal Mountain Festival

  • Seal Picture

    Conservationist

    BDMLR |MBMG | CWT

WELCOME TO TONIC OF THE SEAWELCOME TO TONIC OF THE SEA

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!

  • "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"
  • "I think you already know this, but... I had a brilliant time!! I wouldn't have even got in if it wasn't for you, and now I can say I'd happily go in without tutoring. It's amazing what an hour (well, a bit more thanks to your generosity!) can do for confidence in the water. Thank you."
  • "Our first time snorkelling and what an amazing experience it was, we both enjoyed it so much. Katie who runs the snorkelling experience is lovely and you can learn so much from her. Would recommend booking a snorkelling experience with Katie. "
  • "Katie provided a warm welcome and clear explanation of what the introductory session would entail and what a safe environment it was for a ‘taster session’. The experience was magical, seeing the many different types and colours of kelp, spider crabs, starfish, sand eels and various other fish. A truly memorable experience. "
  • "Thank you so much Katie for taking us snorkelling along the Cornish coastline. We had an absolutely awesome time and can't wait to come back to explore some more!! Thank you for showing us the ropes and for taking us to some incredible locations. Look forward to seeing you again soon :)"
  • "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. "
  • "Wonderful. My boys and I had a brilliant hour snorkelling with Katie. Her knowledge of the area, the conditions and the sea life we would see was superb made the session something none of us will forget. Thank you Katie. "
  • "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."
  • "Lovely and fascinating experience. Katie is a mine of information about sealife and she guided us well throughout . Wonderful."

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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