BREATHWORK BY TAVI CASTRO

Breath like a pro.

Perform under pressure.

Elite breath training for athletes, executives, and founders. Build CO₂ tolerance, sharpen focus, and accelerate recovery—using protocols born from world-class freediving.

Calm under load

CO₂ tolerance training shifts your air-hunger alarm so you hold composure—on the field or in the boardroom.

Rhythm trains the heart

Coherent breathing entrains HRV and steadies the prefrontal cortex for clear decisions when stakes rise.

Stress that strengthens

Exhale holds deliver controlled hormesis—more resilience and faster recovery without overtraining.

Less noise. More power.

Breath is the simplest tool you own—and the fastest way to change how you perform.

You’ll learn to:

  • Master your state on demand — shift instantly between calm, focus, or energy depending on what life requires.

  • Reset your nervous system — dissolve tension, reduce anxiety, and restore inner equilibrium.

  • Expand lung capacity and oxygen efficiency — enhancing physical endurance and mental clarity.

  • Condition your body for resilience — train your physiology to stay composed under pressure, both in and out of the water.

  • Improve sleep and recovery — activate deep rest and cellular regeneration through controlled breathing rhythms.

  • Reclaim presence — reconnect with your body, emotions, and environment through mindful control of your inner rhythm.

Designed for high stakes

Elite athletes, founders, executives, teams in negotiation or high-pressure cycles, and creators preparing for stage or camera.

Results you can feel

  • Endurance ↑, recovery ↑, HRV ↑
  • Cortisol ↓, clarity ↑, reaction time ↑
  • Sleep depth & morning energy ↑

Corporate Workshop

60–90 minutes • On-site or virtual • Up to 30

Objective-led session with printable routines and post-training guidance.

Team Workshop Inquiry

Elite Athlete 1-on-1

4 weeks • Weekly coaching • Testing & tracking

CO₂ training, HRV routines, breath-ups & recovery tailored to your sport.

Apply for Coaching

Private Tulum VIP (1–3 days)

Breathwork • Cenotes • Movement

Fully planned VIP days in Tulum with freediving and wellness activities.

Inquire for VIP Days

Poseidon Ascend Retreats

Tulum / BAJA california

• 7 days / 6 nights • Luxury villa

Daily breathwork, cenote freediving, chef-prepared meals, and pro media.

Inquire About Retreats

Private Freediving Sessions

Gear + cenote access included

Technique, equalization, breath-ups & safety tailored to you.

Book Freediving lessons

Online Masterclass

On-demand lessons & guided sessions

Foundations through advanced protocols for busy pros. Join the waitlist.

Book Online session