Distances

Two tide-assisted Thames distances.

Choose the 10 km Thames Swim from Brentford (first wave 11:15) or the 5 km Landmark Swim from Barnes (first wave 12:10). Both swim downstream and finish at Putney Embankment, outside Imperial Boathouse, on Sunday 6 September 2026.

10 km first wave

11:15

Brentford — Sunday 6 September 2026

5 km first wave

12:10

Barnes — Sunday 6 September 2026

First finishers

13:00–14:00

Putney Embankment, outside Imperial Boathouse

Finish: Putney Embankment, outside Imperial Boathouse. Both distances finish here on Sunday 6 September 2026, with the event village, awards and refreshments at the finish.

10 km Thames Swim

10 km

The headline Swim London distance: a tide-assisted journey from Brentford to Putney for experienced open-water swimmers who are confident completing the full distance.

Start: BrentfordFirst wave 11:15
Finish: Putney Embankment, outside Imperial BoathouseFirst finishers 13:00–14:00
Format: Tide-assisted

Experienced open-water swimmers
Tow float required
Wetsuits optional (subject to water temperatures exceeding 16°C, final guidance confirmed 2 weeks prior to race day)
Minimum age 18
Professional swim-safety team on the water

£150

Entry

Standard entry — includes finish area, medal and refreshments.

View 2026 results

5 km Landmark Swim

5 km

A major London open-water challenge from Barnes to Putney. The tide assists swimmers downstream, making this the more accessible Swim London distance while still requiring proper preparation and open-water confidence.

Start: BarnesFirst wave 12:10
Finish: Putney Embankment, outside Imperial BoathouseFirst finishers 13:00–14:00
Format: Tide-assisted

Capable open-water swimmers
Tow float required
Wetsuits optional (subject to water temperatures exceeding 16°C, final guidance confirmed 2 weeks prior to race day)
Minimum age 18
Professional swim-safety team on the water

£130

Entry

Standard entry — includes finish area, medal and refreshments.

View 2026 results

View 2026 results Read the safety approach

Swimmers escorted by safety kayaks beneath Hammersmith Bridge