We are a small team of experienced diving professionals who love diving, and it shows! We take pride in offering the highest level of service and our combined experience means there isn’t much we can’t help you with.


Callum Girvan

AKA the Big Kahuna! Along with sipping Hendricks gin, Callum’s other favourite activities include talking about rebreathers, all things Shearwater or Fourth Element, and Doza & Ziggy the dogs.

Scuba Instructor Since 1994


  • TDI Instructor Trainer
  • SDI Instructor Trainer
  • PADI Master Scuba Diver Trainer
  • TDI Closed Circuit Rebreather Instructor – JJ-CCR, Poseidon MK6 & Se7en
  • TDI Sidemount Diver
  • Certified Service Technician



The big boss of the entire shop, Doza is a lover of all people and dogs – big and small! His favourite things in life are getting pats, chewing on cardboard (boxes, coffee cup holders, and anything that initially contained food are his favourites). When he’s not in the shop, Doza enjoys wandering around sniffing things, eating, and long naps on his bed.


Sarah Stoneham

Team mum, animal whisperer and the voice of reason. When she’s not in the store Sarah is working on her post grad uni studies, walking her two boys Doza & Ziggy through the Perth Hills, or drinking bubbly while giggling with friends.

Scuba Instructor Since 1994


  • SDI Instructor Trainer
  • PADI Course Director
  • PADI Emergency First Response Instructor Trainer
  • PADI Specialty Diver Instructor Trainer
  • TDI Advanced Nitrox and Decompression Procedures Instructor
  • TDI Closed Circuit Rebreather Diver – Poseidon Se7en



Doza’s younger brother and 2-IC, Ziggy loves to serve people! He is full of energy and will stare into your soul with the most gorgeous puppy-dog eyes, but he is a little nervous of high-visibility shirts. He’s not a huge fan of other dogs, but loves a good cuddle with humans. When he’s not in the shop, Ziggy loves his frisbee, playing “bitey-face” with Doza, and snuggling up on the couch.


Matt Kingsbury

Our Master Instructor and Servicing Guru, Matt’s family still can’t believe he became a scuba diver… he hated the water as a kid, probably because he nearly drowned a few times in his younger years! Most of Matt’s early diving was in the UK, on the WWI & WWII wrecks along the South Coast. But he’s also dived the amazing Red Sea wrecks such as Thistlegorm, Carnatic & Rosalie Moller, along with ice diving in Norway. His favourite drink is Jack Daniels.

Scuba Instructor since 2005


  • SDI OWSD Instructor
  • PADI Master Instructor & EFR Instructor
  • SDI Specialty Instructor for Deep, Computer Nitrox, Solo, Sidemount, Ice (yes, Ice!), Full Face Mask, Equipment, Drift, Wreck, Drysuit, Diver Propulsion Vehicle, Night & Limited Visibility, Advanced Buoyancy, Marine Ecosystems, Search & Recovery, Boat, Shore & Beach.
  • TDI Gas Blender
  • PADI Specialty Instructor for Deep, Enriched Air, Night, Drysuit, Diver Propulsion Vehicle, Boat, Search & Recovery, Reel & SMB, Underwater Navigation, Wreck, Underwater Photography, Oxygen First Aid & Peak Performance Buoyancy).
  • Certified Service Technician



Danny Fryer 

Italian made, Danny has been travelling around the world diving for the last decade and returned to Perth in 2022. After becoming a Sidemount Diver in 2017 – Danny was hooked and Sidemount has been his preferred diving system since for comfort and reliability sidemount offers. When he’s not diving you’ll likely find Danny on top of the water, surfing. 

Diving since 2012.


  • TDI 
  • SDI Advanced Buoyancy Instructor
  • SDI Nitrox Instructor 
  • SDI Deep Diver Instructor 
  • SDI Speciality Instructor 
  • SDI Wreck Instructor 
  • SDI Solo Diver Instructor 
  • SDI Dry Suit Diving Instructor 
  • PSA Full Cave Diver


Trinity Della Bosca 

Trin grew up snorkelling and loving anything and everything about the ocean, so it’s no wonder she’s now studying Marine and Freshwater Science with a minor in Conservation Biology. When Trin isn’t helping on dive courses or in the shop, you’ll likely find her at AQWA volunteering for the curatorial department feeding and caring for fish. You might even spot Trin in the main tank at AQWA feeding the smooth rays and bamboo sharks! 

Diving since 2019.


  • PADI AOW Diver 
  • PADI Nitrox Diver 
  • SDI Rescue Diver
  • SDI Deep Diver 
  • SDI Divemaster 


Joe Sainsbury

Joe would rather spend time underwater rather than dealing with phone calls – no phone calls underwater. Whether it’s a cheeky night dive after work, chasing a feed of crays or prawns or getting out the camera gear,  Joe is always in the water – if he has the choice.

Scuba Instructor since 2013


  • SDI/TDI Specialty Instructor for Advanced Buoyancy, Marine EcoSystems Awareness, Wreck, Deep Diving, U/W Hunter & Collecting, Boat, Dry Suit, Night & Limited Visibility, Search & Recovery, Underwater Navigation, Solo Diving, Adult and Child Emergency Care, Oxygen Administration.
  • PADI Specialty Instructor for Wreck, Deep, AWARE Coral Reef Conservation, Peak Performance