A freediving workshop with Brennan Hatton — Professional & Competitive Freediver
In collaboration with Deep South Freediving

Equalization is the skill that determines how deep you can dive. In this workshop, Brennan walks you through the full journey of equalization — from your first ear pop to advanced techniques used by competitive freedivers — giving you the anatomy knowledge, practical drills, and troubleshooting tools to break through your depth plateau.

You’ll learn about equalisation progression from Valsalva to Frenzel to mouth-fill, with hands-on exercises including mirror-based dry practice, tongue control drills, warm-up routines, and tips for equalizing at depth when it matters most. Brennan also covers often-overlooked topics like sinus management, reverse packing, and how to consciously relax your face and neck to make equalization effortless under pressure.

What you’ll cover:

• The physiology of equalization — what’s happening inside your ears and sinuses
• Valsalva, Frenzel, reverse packing, and mouth-fill — when each applies and how to train them
• Structured dry practice and warm-up routines you can do daily
• Frenzel at depth — tongue position, neck tuck, conscious facial relaxation
• Sinus issues — prevention, in-water fixes, and nighttime remedies
• Applied mindfulness techniques for body awareness and relaxation that support better equalization

Who it’s for:

Freedivers and spearfishers at any level — whether you’re struggling with Valsalva in the first few meters or practicing deep frenzal beyond 40m.

Who’s your instructor?

Brennan Hatton,
 – Molchanovs Wave 1 & 2 Instructor
 – Represented Australia at 2024 CMAS Depth Freediving World Championships
 – Forbes 30 / 30 
 – AI Developer for Fo Guang Shan, Humanistic Buddhist Temple – building AI mindfulness technologies.
 – CoFounder of BookFreedivingRetreats.com

If you can, join us Saturday for the Mindfulness workshop – exercises we learn here will be very beneficial to the equalisation workshop.