River— United Kingdom

Lock 2 Lock 10K

Aug 2, 2026
Last edition date
Distances from 1.6km to 10km

At a glance

Last edition date
August 2, 2026
Distances
1.6 km · 4 km · 10 km
Where
River · River Thames, Oxford, Oxfordshire, United Kingdom
Entry fee
4 km: 78 GBP · 10 km: 125 GBP
Registration
swimoxford.co.uk
Awaiting confirmation of the next edition

About the race

The Lock 2 Lock series offers open water swimming events on the River Thames, featuring distances of 1609m, 4000m, and a 10000m long-distance challenge. These events take place annually during the summer months, inviting participants to navigate a river stretch that carries significant historical resonance. As you swim, the landscape reflects the deep-rooted past of the region, where the river served as a vital artery for the city's development and intellectual life.

Oxford
Oxford · Photo: Tony Hisgett from Birmingham, UK · CC BY 2.0

Historical context and landmarks

Navigating these waters, you are traversing a geography shaped by centuries of conflict and change. The river flows past sites that witnessed the 1142 siege of Oxford Castle, a central event during the civil war known as The Anarchy. In the city centre, the Carfax Tower remains a constant reference point for those on the banks, while the river itself recalls ancient naming conventions; a Roman-era potsherd recovered in the city bears the inscription 'Tamesubugus fecit', linking the modern Thames to its distant origins. The surrounding area is also marked by the memory of the Oxford Martyrs, whose 16th-century execution is memorialized near the city’s heart, a stark contrast to the tranquil waters of the current course. The riverbanks were once the center of a thriving industry, with 16th-century breweries situated along streets like Paradise Street, powering the local economy long before the reach of the university expansion.

River Thames
River Thames · Photo: Diliff · CC BY 3.0
Carfax, Oxford
Carfax, Oxford · Photo: Motacilla · CC BY-SA 4.0

Sources: Oxford · River Thames · Carfax, Oxford

Course

1.6 km

The Oxford Classic 1 Mile Swim, a historic route along the River Thames.

4 km

A majestic 4km swim event held in an area of outstanding natural beauty along the River Thames.

10 km

An epic 10km long-distance challenge navigating the River Thames.

Previous editions

How to get there

Frequently asked questions

When was the last edition of Lock 2 Lock 10K?
The last edition of Lock 2 Lock 10K took place on August 2, 2026.
What distances does Lock 2 Lock 10K offer?
Lock 2 Lock 10K offers 1.6 km, 4 km, and 10 km.
How much is the entry fee for Lock 2 Lock 10K?
Entry fees by distance: 4 km: 78 GBP · 10 km: 125 GBP.
Where does Lock 2 Lock 10K take place?
Lock 2 Lock 10K is a river swim. Location: River Thames, Oxford, Oxfordshire, United Kingdom.
How do I register for Lock 2 Lock 10K?
The reference page for registering for Lock 2 Lock 10K is https://www.swimoxford.co.uk/.

Where to stay

Oxford offers a range of stays from historic college-linked guest rooms and boutique hotels located near the city's ancient port areas to riverside camping options on the outskirts. Prices vary significantly based on the season and proximity to the city center, typically ranging from £80 per night for budget-friendly guesthouses to over £250 for premium riverside establishments. Visitors often prefer staying in the central districts to access the canal and river paths easily before the early morning race start.

Things to do nearby

Beyond the water, the city provides extensive opportunities for cultural and physical engagement. Weekend visitors can explore the historic university colleges, participate in guided punting sessions on the river, or visit archaeological sites related to the medieval period. The surrounding Oxfordshire countryside offers numerous walking trails that follow the river’s path, providing a different perspective on the landscape traversed during the race. Local food markets and breweries continue the city's tradition of artisanal craft, making them popular stops for participants looking to experience the local flavor after the event.

Swimmers

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