CASTLE ISLAND - Northumberland & Northeast

Castle Island isn’t about huge pelagics or endless visibility; it’s a brilliant little wreck dive that punches above its weight. We love it for its intimacy and the way the local marine life has really made it home. This 1922 steamship, the *SS Castle Island*, went down less than a year after launch, striking Brigs Reef. Now, resting in just 5m of water, it’s remarkably intact for such a shallow wreck. You’ll find the bow section relatively complete, with plates and ribs still holding their shape. Our favourite part is exploring the single boiler, a real focal point, now covered in colourful anemones – a fantastic contrast against the dark metal. Shoals of coalfish often swirl around the structure, and if you take your time, you’ll spot blennies peeking from crevices and crabs scuttling over the plates. We’d suggest diving this one at slack tide, especially around high water, to avoid any surge and get the best ambient light. It’s perfect for newer wreck divers or those looking for a relaxed, critter-focused exploration.

Location
Northumberland & Northeast, United Kingdom, Mediterranean & Europe
Coordinates
54.685140, -5.596700
Type
wreck
Maximum Depth
5m

Marine Protected Area: Ballymacormick Point

Nearby Dive Sites in Northumberland & Northeast

Nearest Dive Centres to CASTLE ISLAND

Marine Life in Northumberland & Northeast

Home to 132 recorded species including 53 reef fish, 15 whales & dolphins, 11 sharks & rays, 10 other, 10 seagrass & algae, 9 crabs & lobsters.

Notable Species

Frequently Asked Questions

What are the typical depths for scuba diving around Castle Island in Boston Harbor?
For Castle Island in Northumberland & Northeast, United Kingdom, the typical depth for scuba diving is 5 meters. This shallow depth makes it accessible for many divers exploring the wreck.
What kind of marine life and underwater features can divers expect to see at Castle Island?
Divers at Castle Island can expect to explore the fascinating wreck of a steam ship vessel, sunk on November 9, 1923. This non-dangerous wreck, measuring 41.3m x 6.9m, features one boiler and a triple expansion engine. While specific marine life details are not provided in the current data, wrecks often attract diverse ecosystems; you can learn more about common species on our wildlife database.
How challenging is scuba diving at Castle Island for different experience levels?
Scuba diving at Castle Island is classified as intermediate difficulty. This suggests that divers should have some prior experience beyond basic open water certification to comfortably navigate the site. The wreck environment requires good buoyancy control and awareness.
When is the best time of year to go scuba diving at Castle Island for optimal conditions?
Information regarding the best time of year for optimal diving conditions at Castle Island, including specific temperatures or visibility, is not available in the current data. For general guidance on seasonal diving, please consult our When to Dive section.
What scuba diving certifications are required to dive at Castle Island?
While specific certification requirements are not detailed, given the intermediate difficulty classification for Castle Island, divers should possess at least an Open Water Diver certification and ideally have experience with wreck diving or similar conditions. Always check with local dive operators for their specific requirements.
What are the typical currents and water conditions like for diving around Castle Island?
Details regarding typical currents and specific water conditions for diving around Castle Island are not provided in the available data. Divers should always consult local dive centers for up-to-date information on conditions before planning their dive.