

Best for intermediate divers, 9-12m, boat entry, strong current.
The HMS A1 Submarine is a wreck site located 3200 metres off the coast of Selsey, United Kingdom. Resting at an average depth of 11 metres, with a range between 9 and 12 metres, the site is accessible only by boat. Divers should be prepared for challenging conditions, as the area is subject to strong currents and visibility that can fluctuate between 0 and 6 metres. Due to these environmental factors, the site is suited for intermediate divers. Facilities available in the area include air fills and boat charter services to reach the wreck.
50.73470, -0.91750
There is never much slack water so be prepared to drift off the site after your dive.
The wreck can be reached from Portsmouth, Chichester, Selsey or Bembridge. Charter dive boats operate out of Portsmouth.
Expected in this region. No sightings logged here yet.
Depth
9-12m
Visibility
0-6m
Skill Level
Intermediate
Entry
Boat
Boat required
Water Temp
9-19°C
Current
Strong
No, this site is recommended for intermediate divers due to the presence of strong currents and variable visibility.
The wreck lies at an average depth of 11 metres, with depths ranging between 9 and 12 metres.
No, the site is located 3200 metres from the shore and requires a boat to access.
The main hazards for divers at this location are the strong currents and low visibility.
Diving at Hms A1 Submarine in Portsmouth requires the following certifications: Open Water. Always dive within your training limits.
A drysuit recommended is recommended for diving at Hms A1 Submarine in Portsmouth. Water temperatures range from 9°C to 19°C.
Hms A1 Submarine in Portsmouth can have strong currents. Advanced experience with drift diving and current navigation is recommended.
Visibility at Hms A1 Submarine in Portsmouth can reach up to 6 metres. Conditions vary with weather, tides, and seasons.