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This is the 13th year the River Arun Swim has taken place and another unique chance to swim over the classic Ironman distance of 3.8km from Ford to Littlehampton. Fast times are guaranteed, just ask 2019 competitors, so many PB’s and swimmers under the hour! WETSUITS ARE COMPULSORY.

We’re hoping all Covid restrictions will be lifted the week before this event, so fingers crossed there are no set backs!  It’s likely we will reduce numbers this year and with many deferring from 2020 (thank you), there are likely to be fewer places available, so don’t leave it to the last minute to enter.

The swim has become very popular over the years, with many swimmers making an annual pilgrimage to West Sussex. You’re guaranteed to have a fun day with fellow swimmers; all ages and abilities from 13yrs to 80+ are welcome.

The River Arun has the second fastest tidal river in the UK and stretches as far north as Horsham and down to the sea at Littlehampton in West Sussex. Swimmers are taken by coach to the start point at Ford Marina and then make their way on mass to finish at the RNLI in Littlehampton.  Safety is our uppermost priority and we’ll have our usual REP crew including the Harbour Master’s launch, pilot boat, safety RIBS, kayaks and Sussex Search & Rescue spotters on the river bank.

The start will be just after high tide at Ford (14:00hrs) during the 30 minute period of slack water as the tide starts to ebb away back to the sea.  Registration will take place at the RNLI Station in Surrey Street, Littlehampton, BN17 3BL, which is also the location for the finish on the quay by the Harbour Lights Cafe. Race packs and numbering take place here. For guaranteed parking, head for Coastguard Road (BN17 5LH), which is close to Harbour Park Amusements and only a short walk to the RNLI.

The start time is approx. 14:00hrs from Ford Marina. Coaches will leave the RNLI at Littlehampton around 12:45hrs to take competitors to the holding point at Ford Church.

All competitors will receive free unlimited race photographs from Sussex Sport Photography. Don’t forget we’ll be supporting the RNLI as usual for this event and making a donation to them, but if you have loose change then please bring it along for the charity boxes.

River Arun Swim

River Arun Swim Walk Down

River Arun Swim

River Arun Swim Finish Ramp


“Brilliant event and really enjoyed it thank you”

“Thank you very much for organising an excellent event yesterday. Thoroughly enjoyed it and got a pb so you can’t get better than that. Please thank all your colleagues. It was brilliant. Let me know when entries will be open for the next one as I do not want to miss it and also want to book accommodation early. Again many thanks for an outstanding day.”



Race details 2021



Registration will take place at the RNLI Station between 10:30-12:30. Start time is approximately 1400hrs at Ford Marina. Please leave plenty of time to park as the town and quay will be busy – there are numerous car parks in and around the town. We suggest you initially aim to park at Coastguard Road, BN17 5LH, which is the close to Harbour Park Amusements (See map on website). From here it’s only a short walk on the quay to the RNLI.




River Arun 3.8km Swim 2019
River Arun 3.8km Swim 2018
River Arun 3.8km Swim 2017
River Arun 3.8km Swim 2016
River Arun 3.8km Swim 2015
River Arun 3.8km Swim 2014

River Arun 3.8km Swim 2013
River Arun 3.8km Swim 2012