Catherine M Monohan Wreck
Protected Area
NOAA's Monitor National Marine Sanctuary
Why dive here
With 42+ marine species recorded in the area - including sea turtles - Catherine M Monohan Wreck offers some of North Carolina's richest wreck diving. Water ranges 12-28°C, warmest July, August, September.
The Catherine M. Monohan, a steel-hulled freighter sunk during WWII, sits upright on the seabed off North Carolina. For us, what makes this wreck truly special is the way the ocean has completely reclaimed it. Her cargo holds are open, offering easy penetration for those comfortable with overhead environments. We’ve finned through them when the light streams down, illuminating massive schools of baitfish that swirl like liquid silver. Outside, the ship's superstructure is a fantastic habitat for sand tiger sharks, particularly in late summer and early autumn. We’ve often found them patrolling the bow, their toothy grins a welcome sight against the deep blue. Keep an eye out for Goliath groupers too, often lurking under the deeper overhangs. While the visibility can be variable, a good day here delivers a hauntingly beautiful dive, perfect for advanced divers who appreciate history and serious shark encounters.
Safety Notes
Wreck site - avoid penetration without wreck diving certification. Watch for sharp metal and entanglement hazards.
Reviews for Catherine M Monohan Wreck
Conditions
Ocean conditions, forecast and tides for Catherine M Monohan Wreck
Catherine M Monohan Wreck Ocean Conditions
Monthly averages for Catherine M Monohan Wreck, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (34.6, -76.6) (0km away)
October Averages
Sea Temperature
23°C
73°F · Range: 19.9–26.4°C
Air Temperature
20°C
67°F
Wind Speed
1.8 m/s
3.5 knots
Atmospheric Pressure
1016.7 hPa
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data
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