

Best for beginner divers, 5-25m, boat entry, mild current.
Stack Rocks is a reef dive site located 500 metres from the shore within the Skomer Marine Reserve. The site offers depths ranging from 5 to 25 metres and is suitable for beginners, though conditions vary. Access is by boat only. Divers should be aware of potential hazards including boat traffic, sea urchins, strong currents, and surf. Water temperatures fluctuate throughout the year, ranging from 9C in the winter months to 17C in September. As a marine reef environment, the site provides a varied underwater topography for exploration.
51.77560, -5.17420
The site is sheltered from prevailing south westerlies and is one of the more reliable Pembrokeshire south coast dives.
Charter boats run from Tenby and Stackpole Quay subject to military firing range schedules.
Recorded at this site
Depth
5-25m
Skill Level
Beginner
Entry
Boat
Boat required
Water Temp
9-17°C
Current
Mild
Best Time
May, Jun, Jul, Aug, Sep
Yes, the site is classified as suitable for beginner divers.
The site features depths ranging from 5 to 25 metres.
Access to Stack Rocks is by boat only, as it is located 500 metres from the shore.
Divers should be cautious of boat traffic, sea urchins, strong currents, and surf.
Diving at Stack Rocks in Castlemartin requires the following certifications: Open Water. Always dive within your training limits.
A drysuit recommended is recommended for diving at Stack Rocks in Castlemartin. Water temperatures range from 9°C to 17°C.
The best months to visit Stack Rocks in Castlemartin are May, June, July, August, and September. Conditions outside these months can still be good but are less predictable.
Stack Rocks in Castlemartin typically has mild currents that most divers can handle comfortably.