Wreck Alley
Protected Area
Cooper Island
Why dive here
With 491+ marine species recorded in the area - including barracuda, blacktip reef sharks, dolphins, dwarf minke whales and eagle rays - Wreck Alley offers some of Salt Island & Cooper Island's richest wreck diving. Water ranges 27-30°C, warmest August, September, October.
Wreck Alley, off Cooper Island, is where we head when we’re feeling a bit greedy. Four wrecks, sunk intentionally starting in the 90s, means there’s always something new to poke around. The *Marie L*, *Pat*, *Beata*, and *Island Seal* are all down there, stacked up, and they've become home to an impressive number of residents. The wrecks themselves are a blast to explore. You can weave between the hulls, duck into old holds, and imagine them in their working days. Our favourite part has to be the sheer density of fish life. Forget just a few tangs; here we’re talking about schools of chromis and snapper that just melt around you as you swim through them. Look for the big stingrays – they’re comfortable with divers and will often glide right through the middle of a group. We’ve also seen some really impressive garden eel colonies stretching out from the sand around the wrecks, little periscopes swaying in the current. Maximum depth is 24m, so it’s a great spot for advanced open water divers who want to spend some time exploring rather than rushing a deep site. Visibility averages around 19m, decent enough to appreciate the scale of the alley. It's a busy site, so pick your time; early morning usually means fewer boats.
Safety Notes
Wreck site - avoid penetration without wreck diving certification. Watch for sharp metal and entanglement hazards.
Wreck Alley Wreck History
Vessel Type
barge
Cause
scuttled
The Baby Barge is a classic Hawaiian dive site and a perfect introduction to wreck diving. While its specific history is not well-documented, it is widely believed to have been intentionally sunk to create an artificial reef, a common practice that enhances the marine ecosystem and provides fantastic opportunities for divers. Its simple, open structure and relatively shallow depth make it an ideal training ground for those new to exploring underwater structures, allowing them to hone their buoyancy and navigation skills in a safe and controlled environment.
Despite its humble origins, the Baby Barge is teeming with life. Its metal framework has become a thriving habitat for Hawaii's iconic marine creatures. Divers frequently encounter green sea turtles (honu) resting on its deck, while schools of reef fish swarm around its edges. White-tip reef sharks are often found sheltering underneath the barge, making for an exciting and memorable encounter. It’s a testament to how quickly the ocean can transform a simple structure into a vibrant and bustling underwater neighborhood.
Nearest Dive Centres to Wreck Alley
Dive shops near Wreck Alley
Sail Caribbean Divers
Turquoise Turtle Charters
Crabby's
Reviews for Wreck Alley
Conditions
Ocean conditions, forecast and tides for Wreck Alley
Wreck Alley Ocean Conditions
Monthly averages for Wreck Alley, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (18.37, -64.56) (2km away)
October Averages
Sea Temperature
30°C
86°F · Range: 28.9–31°C
Air Temperature
28°C
82°F
Wind Speed
7.7 m/s
15.0 knots
Atmospheric Pressure
1013.1 hPa
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data
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