Scuba Diving in the UK

Scuba Diving in the UK — Is It Worth It? An Honest Guide

I will be straight with you. I prefer warm water diving. Clear blue tropical water, big fish, manta rays in Komodo, wrecks in Thailand and Colombia. Given a free choice I would pick warm water with a cold beer after every time.

But I have dived Scapa Flow in the Orkneys and I would go back without hesitation. Because some dive sites transcend the temperature.

Here is my honest guide to scuba diving in the UK — what is genuinely worth doing and what is best left to a long weekend in Egypt.

What Is UK Diving Actually Like?

Cold. That is the first honest answer. UK sea temperatures range from around 7 to 8 degrees Celsius in winter to 16 to 18 degrees at their warmest in late summer. Visibility varies enormously — on a good day in clear coastal water you might get 10 to 15 metres. On a typical day at an inland quarry in winter, considerably less.

You will need a drysuit for most UK sea diving. A wetsuit will get you through the warmer months at quarry sites but the cold around any exposed skin is real and unpleasant. I dived Scapa Flow with only my face exposed to the water and it felt like being stabbed. The rest of me was warm. My face was not.

That said — UK diving has things that tropical diving does not. History. Marine life that thrives in cold nutrient-rich water. Wrecks that have been sitting on the seabed for over a century. And a community of divers who are genuinely passionate about the sites on their doorstep.

Scapa Flow, Orkney — The Only UK Dive Site That Needs No Qualification

Scapa Flow in the Orkney Islands is one of the world’s best dive locations, thanks to the presence of wrecks from the German High Seas Fleet, famously scuttled by their interned crews in Scapa Flow in 1919. On 21 June 1919, believing the British intended to seize the fleet, Rear Admiral Ludwig von Reuter gave the order to scuttle every ship. Of the 74 ships scuttled, seven complete wrecks remain on the seabed today — three battleships and four cruisers — alongside numerous smaller blockships. PADI Scuba Diving

I went to Scapa Flow specifically for the wrecks and it delivered everything I hoped for and more. The wrecks have certainly got more damaged and rusted over the decades — time and salt water are unforgiving — but that rust and decay is part of the experience. These are genuine warships that saw real action. Walking the hull of a First World War battleship that fired its guns at Jutland is something you do not find anywhere else on earth.

The water temperature reaches around 13 degrees Celsius by mid-September, and visibility can be around ten metres during the summer months, increasing when the plankton dies back during autumn. Scuba Diver Life

I saw lobsters on the wrecks — enormous ones, the kind you do not see in tropical water. Beautiful kelp formations covering the metalwork. Seals that appear from nowhere and circle you curiously before disappearing again. The marine life in UK cold water is different from tropical diving but it is abundant and often spectacular.

And the location above water is as impressive as what is below it. Stromness is a beautiful town. The Orkneys are stunning. It is a proper trip — not just a dive destination but a place worth visiting in its own right.

Some 3,000 divers a year visit Scapa Flow to explore these magnificent seven and return time after time. Boat dives here need to be booked well in advance — sometimes up to two years ahead for the most popular operators during peak season. Scuba Diver Life

The Main Wrecks at Scapa Flow

The Kronprinz Wilhelm is one of three battleships that can be dived in Scapa Flow. She sits in about 34 metres of water on her starboard side with much of the superstructure embedded in the silty seabed. She is a little shallower than the other battleships and you will find the top of the hull between 12 and 15 metres making it an enjoyable dive for any level of diver.

The SMS Cöln lies at 36 metres on its starboard side with its shallowest point at 22 metres. The wreck also often features lots of small shoaling fish, pollock, cod, lobsters, crabs and sea urchins.

The SMS Karlsruhe had 12 boilers, and these are now exposed. The boiler tubes are huge and home to conger eels and large crabs. Orkney

For wreck divers — the battleships are the main draw. Huge, historically significant, and increasingly encrusted with marine life as the years pass. There are few wrecks in the world where divers can see the iconic main guns of a battleship — this fact alone makes Kronprinz Wilhelm a favourite among wreck aficionados.

Other UK Dive Sites Worth Knowing

Stoney Cove, Leicestershire — the most popular inland diving site in the UK. A flooded quarry with various submerged vehicles and structures placed specifically for divers. Good for training and skills practice, less exciting for experienced divers looking for natural marine life. Honest assessment — it is fine for what it is.

Vobster Quay, Somerset — similar to Stoney Cove, a well-run inland site with various dive features. Good facilities and a warm welcome. Better suited to training and skills development than exploration diving.

Eastbourne and the Sussex coast — some reasonable wrecks accessible from shore and by boat. Conditions are variable and visibility depends heavily on recent weather. Worth a local dive but not a destination trip.

For anything beyond Scapa Flow, if I am honest — I would rather book a long weekend in the Red Sea, Dahab, or the Canaries. Clearer water, better visibility, warmer temperatures, more dramatic marine life. The cost of a UK dive trip with equipment hire, accommodation, and boat fees often approaches the cost of a return flight to Egypt.

Is UK Diving Worth It?

Yes — but for specific reasons rather than as a general statement.

Scapa Flow is worth it for any serious diver. The history, the scale of the wrecks, and the sheer uniqueness of the experience cannot be replicated anywhere else. If you are a wreck diver, Scapa Flow belongs on your list without question.

UK quarry sites are worth it for training, skills practice, and getting comfortable with cold water and reduced visibility conditions. If you can dive comfortably in a UK quarry in winter, warm water anywhere in the world feels easy.

UK sea diving is worth it occasionally, particularly for the community. You meet brilliant like-minded people. The diving community in the UK is welcoming, knowledgeable, and genuinely passionate. That part of it I would never trade. Some important kit to think about here.

But if someone asks me whether they should do their first ten dives in the UK or book a trip to Koh Tao, the Red Sea, or the Maldives — I am going to send them somewhere warm every time.

FAQs

Do I need any qualification to dive in the UK?
To dive independently you need at minimum a PADI Open Water or equivalent qualification. For Scapa Flow’s deeper wrecks — Advanced Open Water is strongly recommended and some operators require it. Always dive within your certification limits.

What visibility can I expect diving in the UK?
Highly variable. Inland quarry sites typically offer 3 to 10 metres. UK coastal sites vary from almost zero in poor conditions to 15 metres on a good day. Scapa Flow offers around 10 metres in summer, improving in autumn as plankton dies back.

Do I need a drysuit for UK diving?
For sea diving — yes, for most of the year. A 5mm wetsuit is manageable in summer months at quarry sites. For Scapa Flow and any sea diving from autumn through spring, a drysuit is strongly recommended.

Always dive within your certification limits and experience level. Check conditions and seek local knowledge before any UK sea dive.