

Best for intermediate divers, 6-45m, boat entry, strong current.
Mewstone is a boat-accessible reef and drift site off the South Coast of England, featuring a dramatic range of terrain from 6 to 45 metres with an average depth of 22 metres. The site is characterised by dense kelp forests and reef structures. Divers must manage strong currents and surge, which can create entanglement risks in the kelp. Visibility typically ranges from 8 to 12 metres, though it can fluctuate. Due to the challenging conditions and tidal flow, this site is suited to intermediate divers. Night diving is possible. Species recorded around this area include gray seals, wrasses, crabs, and various cephalopods.
50.33433, -3.53270
Current at the Mewstone can run hard even when surface conditions look benign, so check tidal data carefully and plan your entry around slack. Carry a surface marker buoy and deploy it early on ascent, as boat traffic and drift can both be factors on this site.
Ten-minute RIB ride south from Plymouth Sound’s breakwater.
Recorded at this site
Depth
6-45m
Visibility
8-12m
Skill Level
Intermediate
Entry
Boat
Boat required
Water Temp
10-16°C
Current
Strong
Typical Dive
50 min
Best Time
May, Jun, Jul, Aug, Sep
Species recorded around this area include gray seals, wrasses, crabs, common octopus, European common cuttlefish, gurnards, catsharks, common lobsters, sea slugs, compass jellyfish, monkfish, sepiola, John Dory, and orange-clubbed nudibranchs.
No, Mewstone is recommended for intermediate divers due to the strong currents, surge, and depth range.
The depth ranges from 6 to 45 metres, with an average depth of 22 metres.
Mewstone is a boat-only dive site.
This site is primarily a dive location due to the depth and strong currents.
Diving at Mewstone in Dartmouth requires the following certifications: Open Water. Always dive within your training limits.
A drysuit recommended is recommended for diving at Mewstone in Dartmouth. Water temperatures range from 10°C to 16°C.
The best months to visit Mewstone in Dartmouth are May, June, July, August, and September. Conditions outside these months can still be good but are less predictable.
Mewstone in Dartmouth can have strong currents. Advanced experience with drift diving and current navigation is recommended.
Visibility at Mewstone in Dartmouth typically ranges from 8 metres to 12 metres. Conditions vary with weather, tides, and seasons.