10/07/2026
Lock 2 Lock 10K Thames Marathon Swim
https://www.swimoxford.co.uk/
Experience one of the UK's most beautiful marathon swims.
Follow the gentle flow of the Upper Thames on this sublime 10K downstream adventure, passing through three historic locks with fully stocked hydration stations at each one. Set amongst stunning natural scenery, this is open water swimming at its very best.
From your first stroke to the finish line, our experienced safety crews are with you every step of the way, providing outstanding support throughout your journey.
The Lock 2 Lock Swim Series has earned a reputation for exceptional organisation, breathtaking surroundings, unrivalled swimmer support, and genuinely caring after-event hospitality. It's more than just a swim—it's an experience shared with an amazing community of open water swimmers.
Come and be part of something truly special.
14/06/2026
A stunning early-morning Lock to Lock 4K swim on the beautiful River Thames, celebrating the very best of open-water swimming in Oxfordshire.
One swimmer described it as:
"A masterful event organised to perfection."
A huge thank you to everyone who makes these events so special—from our safety crews and volunteers to the organisers and supporters behind the scenes. The safety team were outstanding throughout: professional, supportive, friendly, and always there when needed.
The atmosphere, camaraderie, and sense of achievement make these swims truly memorable.
If you've never taken part in one of our events before, we highly recommend giving it a go—you'll love every minute of it.
Thank you to all our swimmers for making it another fantastic day on the river.
08/06/2026
Lock 2 Lock 4K 14th June sales have now closed. We wish all swimmers a safe journey to the start. Info has now been sent out to all swimmers. Looking forward to meeting you all on the day, We think it's going to be a fast one, with the flow.... https://www.swimoxford.co.uk/
