TRAIN WILD.
DIVE FREE.

The ocean explorer training platform

Breathwork, strength, and mobility training built for freedivers, spearfishers and surfers. Structured 4-week blocks, personalised to your level. Train anywhere. Go deeper. Come home safe.

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Launching soon — join the waitlist below 🌊

Who It's For

Built for Ocean Explorers

Whether you're pushing depth limits, hunting underwater, or charging big waves — Fathom Blue is built for you.

Freedivers

Push your depth limits with personalised CO₂ and O₂ training tables, breathwork sequences and structured 4-week training blocks. Track your progress, improve your technique, and dive deeper — safely.

Spearfishers

Longer bottom time means more fish. Structured breath-hold training, spearfishing-specific techniques and ocean strength conditioning give you the edge underwater. Built for hunters.

Surfers

Stay calm in hold-downs. Train your breath for big waves with high-stress recovery techniques, mobility flows and strength conditioning used by serious ocean explorers worldwide.

What's Inside

Everything in One App

Six powerful tools, one elegant platform — designed to take you deeper.

CO₂ & O₂ Training Tables

Personalised breathwork tables that adapt to your maximum breath-hold time. Five protocols — CO₂, O₂, Wonka, Mixed and Custom — plus Box Breathing and dynamic apnea.

Progress Tracking

Log every session. Track your personal bests. Watch your breath-hold times grow with session history, charts and your training streak — all in one place.

4-Week Training Blocks

Structured block-based training across beginner, intermediate and advanced levels. Each block follows a proven 4-week arc — Accumulation, Progression, Intensification, Deload.

Safety First — Always

Buddy system reminders, shallow water blackout education, and a built-in Safety Certification quiz. Safe training protocols are embedded in every single session.

Three Training Pillars

Every session is one of three pillars — Breathwork, Workout or Mobility. Your daily training combines all three for complete ocean fitness, not just breath-hold numbers.

Wearable Support

Apple Watch, Android Watch, Garmin and Oximeter integration coming soon. Track your training from your wrist, in or out of the water.

Coming Soon

Three Pillars. One Ocean Explorer.

Every Fathom Blue training block combines breathwork, physical conditioning and mobility — the three pillars of complete ocean fitness.

Breathwork

CO₂ and O₂ training tables, static apnea, dynamic apnea, and breathwork sequences. Personalised to your maximum breath-hold time and calibrated week by week.

CO₂, O₂, Wonka, Mixed & Custom tables
Box Breathing & dynamic apnea
Breathwork sequences with voice cues
Personal best tracking

Workout

Ocean-specific strength and conditioning. Kettlebell circuits, bodyweight training and dive fitness exercises designed to make you stronger, more powerful underwater.

Bodyweight & kettlebell training
Dive fitness circuits
Ocean strength conditioning
Equipment-matched to your kit

Mobility

Flexibility and movement quality for ocean performance. Thoracic mobility, hip openers, shoulder work and full-body flows — built for divers, surfers and spearfishers.

Sport-specific mobility flows
Thoracic, shoulder & hip work
Active recovery sessions
Deload week recovery flows

The App

See It In Action

A clean, intuitive interface built for explorers who want to focus on training, not buttons.

Training Timer

Real-time breath-hold guidance with audio cues and vibration alerts

Progress Charts

Visualise your improvement week by week

CO₂ Table

Adaptive tables built around your personal max breath-hold time

Spearfishing Tips

Expert technique library from world-class spearfishers

Pricing

Start Free. Go Deeper.

No credit card required. Upgrade when you're ready to go all-in.

3 training sessions per week
All three training pillars — Breathwork, Workout & Mobility
Basic CO₂ and O₂ tables
Progress tracking & personal bests
Safety Certification quiz
Ad-supported

Start Free Today

Unlimited training sessions
All three training pillars — Breathwork, Workout & Mobility
All 5 breathwork protocols + advanced table types
Advanced training blocks (intermediate & advanced)
Spearfishing technique library
Wearable integration (coming soon)
No ads