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Great East Swim

Event details


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"Whether you're looking to try an open water swim for the first time, or you're searching for the ultimate challenge, the Great East Swim offers you a selection of distances to suit your ability.

The event takes place at Alton Water it offers a great day out for swimmers, families and spectators. With farmers' markets, plenty of musical entertainment and swim distances ranging from 250 metres* right up to a 10k, there really is something for everyone!"

How to enter the Great East Swim

  1. 10k

    Swim 10km
    Event passed
  2. 5k

    Swim 5km
    Event passed
  3. 2 Mile

    Swim 2mi
    Event passed
  4. 1 Mile

    Swim 1mi
    Event passed
  5. Half Mile

    Swim 0.5mi
    Event passed
  6. Swim250

    Swim 0.25km
    Event passed

Great East Swim routes

The 10k course will consist of 6 laps of the Great Swim course. You will be constantly monitored by our safety team and have the opportunity to finish at the end of any lap should you need to on the day. Your time will stop when you go over the timing mat at the finish.

Event Details

  • chip timing
  • bag drop
  • finisher's t-shirt
  • finisher's medal
  • nutrition and aid stations

You must check-in 30 minutes before your start time. If you miss it we may not be able to move you to another wave, so please don't be late.

Time Hat
08:00 RED 5k swim
08:05 GREEN 10k swim
10:00 PINK 2 mile swim
10:30 YELLOW SwimRun (Short distance)
11:00 ORANGE 1 mile swim
11:30 WHITE 1 mile swim
12:00 RED 1 mile swim
12:30 GREEN 1 mile swim
12:50 PINK Swim250
12:55 YELLOW Swim 250
13:30 ORANGE 1/2 mile swim 

Wet suits are compulsory and every child aged 12 and under must be accompanied by one adult (per child). Anyone aged 18+ years old is classified as an adult.

Spectators are welcome!

If I don’t complete the 10k will I still get my finisher’s pack?

Yes – lap counting is an honesty system and down to each individual swimmer. Regardless of when you come through the finish system you are still entitled to your finisher’s pack.

Will there be a feed station?

There will be a small pontoon reserved for 10k swimmers that you will pass at the end of each lap. You can stop on any or all of your laps to have a drink of Aqua Pura or take on some Jelly Babies. We recommend you practice taking these on board in your training. To avoid polluting the lake we ask that people replace any bottles back on the pontoon.

Can friends / family access the feed station?

The feed station is small and adjacent to deep water so only Great Swim staff will be able to access it.

When will I receive my swim pack?

The Great Swim packs are sent out approximately two weeks prior to the event.

Your pack should contain your swim hat, timing chip and a competitor’s information guide with more detailed event information.

Can I get out or have a rest at any point?

The feed station will be in deep water. You won’t be able to stand up but you will be able to hold on and take a minute to get your breath and receive a few words of encouragement from our Great Swim team. There will not be space for you to exit the water unless you are withdrawing from the swim.

Can I bring my own hydration and nutrition products for the event?

Unfortunately we can’t cater for individual requirements as we have limited space on the feed station. Bottles of water and Jelly Babies will be made available for all swimmers.

What About Water Safety?

We just want to reassure you that you are in very safe hands while taking part in your swim. We have lots of fully trained water safety kayakers, lifeguards and boats monitoring you all the way around, so you’re never far from some friendly support.

If you find yourself struggling, or in need of a little breather, just lay on your back and pop your hand up, and one of our safety team will make their way to you to check everything is ok.

Age cut-off?

  • 12 years or over to enter a ½ mile swim
  • 16 years or over to enter a 1 mile, 2 mile or 5k swim
  • 18 years or over to enter a 10k swim
  • 16 years or over to enter the SwimRun

Meet the organiser

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The Great Run Company is a United Kingdom events company specialising in the development, design, organisation and rights management of mass participation and televised sporting events. They most notably organise the Great North Run, Great South Run and Great Manchester Run annually.


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