castletown.org.uk · Official Local Project
Purpose-built underwater park in Balaclava Bay ideal for beginners and experienced divers.
Dive Spot Guide•
Balaclava Bay
Balaclava Bay: sheltered Portland drift dive
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Portland bay dive with easy shore access, drift-friendly water, and curiosity-park features plus the nearby Dredger.
About Balaclava Bay
Balaclava Bay is a sheltered Portland harbour dive with a sandy reef-and-rubble bottom, easy shore access, and a mix of drift water, harbour-wall structure, and purpose-built curiosities to explore. It is a good fit for trainees and relaxed club dives because the bay offers protected water with enough tide and texture to stay interesting, while the nearby Dredger and underwater features add extra landmarks for more experienced divers. Expect a practical south-coast dive with marine life and changing conditions rather than a single fixed wreck.
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Research Estimate At Balaclava Bay
Conservative baseline from public research. No community dives logged yet.
VisibilityVisibility: 5m
AccessSimple entry
CoralHeavily damaged
Aquatic LifeGreat variety
FacilitiesExcellent facilities
CurrentLight current
SurgeLight surge
Where Is Balaclava Bay?
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Community sourced coordinates.
Balaclava Bay Planning Details
Depth range, seasonality, and planning context.
Reported Depth
6m - 20m
Depth Note
The bay starts on a ledge around 6m, while the curiosity park and drift line can extend to around 20m depending on where you work the site.
Best Season
Year-round, with calmer seas preferred.
Typical Conditions
Sheltered bay drift with sandy seabed, rocky reef, harbour-wall structure, and tidal movement.
Safety & Access At Balaclava Bay
Hazards, restrictions, and access requirements.
Safety Notes
Keep a close eye on the drift line and do not stray from the marked site.
Access Restrictions
Stay on the site so tidal flow does not carry you toward the harbour entrance.
Legal Notes
Respect Portland Port restrictions and keep clear of harbour traffic.
Local Intel For Balaclava Bay
Community notes to help plan your visit.
Scuba Diving
Suitable for drift diving, starting around 6 m with depth choice depending on how far you swim out.
Freediving
The bay can suit controlled shallow practice, but it is mainly a scuba and club-dive site.
Snorkeling
Snorkelling is possible only in calm, shallow water and is not the main use of the site.
Wildlife at Balaclava Bay
Species commonly reported at this site, with direct links into their wildlife guides.
Recent Logged Visits At Balaclava Bay
Community dive logs and visit reports for this site.
Dive Spot Log Averages At Balaclava Bay
Average conditions based on logged dives & visits.
Conditions
Avg. Visibility5m
Activity
No dive activity logged yet.
