Cow Bombie
Cow Bombie (Cowaramup Bombora) is Australia's premier big wave break—an open-ocean reef that lurks 2 kilometres offshore from Gracetown in the Margaret River region. When massive Indian Ocean storm swells push through, the bombie comes alive with waves that have been ridden at 40+ feet, making it the biggest wave ever surfed in Australia. The break was pioneered by local big wave chargers and has since attracted international big wave surfers. Only accessible by jet ski, Cow Bombie represents the absolute pinnacle of Australian big wave surfing.
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Location & Conditions
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Spot Details
Swell Requirements
- Optimal direction
- WSW (240°)
- Direction range
- 190° - 290°
- Size range
- 4m - 18m
- Ideal size
- 10.4m
- Height multiplier
- 1.08×
- Ideal period
- 20s+
Wind Requirements
- Optimal direction
- E (100°)
- Offshore range
- 70° - 135°
Tide Requirements
- Optimal tide
- all
Water temp
18°C
Wetsuit
3/2mm fullsuit
Difficulty
10/10
Crowd level
1/10
Access: ~2hr45 drive south from Perth to Gracetown, then jet-ski launch and a 2km ride out to the break.
Best Season
Peak: Jun-Aug
Secondary: May, Sep
Winter only. Needs massive swell to break on the outer reef.
Getting There
Nearby Spots
South Point
🌿 Gracetown left • Beginner friendly • Works in onshore
Lefthanders
🦈 Gracetown quality • Workable walls • Shark country awareness
North Point
🌊 When Margs is too small • Big wave testing ground • Serious sharks, serious waves
The Guillotine
🔪 Gracetown reef • Very consistent • Uncrowded
The Box
⚠️ Australia's heaviest slab • Square barrels of doom • Helmets mandatory
Margaret River
🦈 Indian Ocean power • Multiple world-class breaks • Bring your shark shields