The Big Scuba Day Out: The Ultimate Day for Divers and Water Lovers
Get ready for a full day of diving, socialising, and water sports as Oyster Diving’s Big Scuba Day Out returns to Mercer’s Lake on Saturday 2nd May 2026, near London — and best of all, entry is completely FREE.
Whether you’re a seasoned diver, newly qualified, or simply looking for a great day by the water, this event is designed to bring people together. Non-divers are just as welcome, with lakeside walks, a relaxed social atmosphere, and plenty to see and do throughout the day.
Dive, Demo & Explore
Qualified divers can join guided dives throughout the day, starting from 9:30am, exploring the unique underwater features of Mercers Lake.
There will also be the opportunity to test dive the latest equipment from leading manufacturers including Suunto, Apeks, Aqualung, Mares and XDEEP. From regulators and wings to dive computers, this is a rare chance to try new kit in the water before you buy.
Underwater Photography Workshop
A highlight of the day is the underwater photography workshop led by Caroline Robertson-Brown of Frogfish Photography, one of the UK’s most respected underwater photographers.
The session includes a short land-based workshop followed by a guided dive, giving participants the chance to put their skills into practice and receive feedback on their images. (Participants must bring their own underwater camera or action camera.)
An underwater photography competition will also run on the day, with entries judged by Caroline.
Prizes, Raffle & Community
Win a Suunto Nautic-S worth £479!
The event will feature Oyster Diving’s popular raffle, with £100s of prizes up for grabs, all in support of the Shark Trust and their ongoing conservation work.
More than just an event, the Big Scuba Day Out is a chance to meet other divers, connect with the local dive community, and spend a great day outdoors.
PADI Pro Talk
If you are thinking of leaving your day job and living the dream. Meet PADI Regional Manager and Oyster Diving’s Course Director for a talk on how to become a PADI professional Divemaster and Instructor.
Join The Big Scuba Day
Whether you’re coming to dive, try new equipment, improve your photography, or simply enjoy the atmosphere, the Big Scuba Day Out promises something for everyone.
As an added bonus, attendees will have access to exclusive discounts on courses, holidays, and dive gear through www.oysterdivingshop.com — so if you’ve been thinking about upgrading your kit or booking your next big dive trip, this is your chance to grab a great deal!
For full details and to book dives or workshop spaces, visit oysterdiving.com/big-scuba-day-out.
