Your key to in-depth knowledge and safe diving.
Discover our unique learning system –
and start your underwater adventure with confidence.
How MasterKey Diving Works
Be it during training, for repetition or directly before the dive -
MasterKey Diving accompanies you everywhere.
Our card learning system combines important theory,
signals and safety rules in a compact format.
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Understanding instead of memorization
Essential content
compact, clear – and always at hand
+bonus material
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Always at your fingertips
Compact in size
Powerful in impact
Credit card format – fits in any pocket.
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Waterproof & sturdy
For training and
real-world practice
What's inside the MasterKey Starter Set?
Everything you need – all on 10 cards.
From the buddy check to underwater signals and mental training –
the Starter Set keeps the essentials always within reach.
Durable, clearly structured, and ready for every dive.
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Pre-order now –
available
Secure your set now
and be one of the first to dive in with our new card system.
Please note: Shipping starts on July 15, 2025 –
right on time for the official product launch.
You’ll receive an order confirmation
and be notified as soon as your package is on its way.
and rethink how dive knowledge is learned.
July/15/2025
Diving
© 2025 by MasterKey Diving.
A brand of MasterKey Training Systems
All content is copyrighted and licensed by MasterKey Training.