MANCHESTER MERCHANT (PROBABLY)
Protected Area
Castlemaine Harbour SPA
Why dive here
With 185+ marine species recorded in the area - including blue sharks, dolphins, dwarf minke whales, humpback whales and ocean sunfish (mola mola) - MANCHESTER MERCHANT (PROBABLY) offers some of South Coast's richest wreck diving. Water ranges 9-15°C, warmest July, August, September.
The Manchester Merchant, or what we strongly suspect is her, offers a fantastic shallow wreck dive just off the Irish coast. It’s a proper ship, even if she did go down in 1903. At only 11 meters, you get fantastic bottom time to really explore her broken up hull. We love picking through the scattered plates, imagining the scale of her boilers. You’ll find conger eels tucked into the darker recesses, their heads poking out to watch you, and the cracks in the steel are often home to squat lobsters, miniature tanks scuttling away when your light hits them. On a good day, with the sun filtering through the water, the visibility here can be surprisingly decent, painting the metal in a soft, green light. It’s a wreck that invites close inspection, rather than just a fly-over. We’d suggest going at slack water to avoid any surge, giving you the best chance to appreciate the sheer size of the hull. This is a brilliant site for newer wreck divers or those who just want a relaxed rummage around a piece of history.
Typical MANCHESTER MERCHANT (PROBABLY) Dive Profile
Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.
Safety Notes
Wreck site - avoid penetration without wreck diving certification. Watch for sharp metal and entanglement hazards.
Cold water this month (avg 14°C). Drysuit or thick wetsuit (7mm+) recommended.
Always perform a 3-minute safety stop at 5m before surfacing.
Reviews for MANCHESTER MERCHANT (PROBABLY)
Conditions
Ocean conditions, forecast and tides for MANCHESTER MERCHANT (PROBABLY)
MANCHESTER MERCHANT (PROBABLY) Ocean Conditions
Monthly averages for MANCHESTER MERCHANT (PROBABLY), sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (51.71, -8.38) (9km away)
October Averages
Sea Temperature
14°C
57°F · Range: 12.3–14.8°C
Air Temperature
12°C
54°F
Wind Speed
7.84 m/s
15.2 knots
Atmospheric Pressure
1008.6 hPa
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data
Plan & book
Ways to dive South Coast, from day trips to liveaboards.
Day trips & courses
via GetYourGuideGuided dives, courses and snorkel trips with instant booking.
Find dive trips in South CoastPlaces to stay
via Booking.comHotels and dive resorts near South Coast.
Search stays in South CoastDive insurance
Most travel insurance excludes or limits scuba. Check what you need before you go.
Dive insurance explainedPartner links: we may earn a commission if you book, at no extra cost to you. How we make money
Where to Stay near MANCHESTER MERCHANT (PROBABLY)
Prices from Booking.com. We may earn a commission at no extra cost to you.