Serre Ponçon Swim Challenge 12km & 20km - Hassle Free Package


Serre Ponçon Swim Challenge 12km & 20km - Hassle Free Package

Join the ultimate Serre Ponçon Swim Challenge with our hassle free package for this once in a lifetime open water 12km or 20km swim.

Location: Serre Ponçon Lake

Holiday Price
Adult: 601€ to 968€
Prices will vary depending on your dates, party size and / or accommodation choice.

Official Hassle-Free Package Partner

Undiscovered Mountains is proud to be the official Hassle-Free Package Partner for the Serre-Ponçon Swim Challenge. We take care of accommodation, local transfers and practical logistics so you can arrive prepared and focus on your swim.

Please note:  prices shown are for the accommodation and logistics package only. Your required event ticket is selected and added at checkout, so the final price will depend on whether you choose the 12 km swim, 20 km swim, relay entry or other event options

How this package works

This page allows you to book your accommodation and local logistics for the Serre-Ponçon Swim Challenge.

Your event ticket is then added at checkout, according to the distance or format you are entering.

This is because participants may be booking in different combinations: one swimmer with a kayaker, two swimmers sharing a room, a relay team, or supporters travelling with swimmers.

Although the event tickets appear in the checkout under “extras”, they are not optional for swimmers. Every swimmer must add the correct event ticket before completing their booking.

What's included in the hassle free package

  • 3 nights accommodation in a choice of hotels (prices based on 2 people sharing a room -  private room available for a supplement).
  • 3 breakfasts (including a special carry out early breakfast for event day)
  • A pre-swim visit of the lake and acclimatisation day
  • Visit of the Museoscope - interactive exhibition of the history of the lake
  • Local transfers during the programme
  • Pre-event support from the Undiscovered Mountains team
  • Assistance with logistics before and during your stay

What is included in your event ticket

Your event ticket is added separately at checkout and includes the event-specific services for your chosen format.

  • Official Serre-Ponçon Swim Challenge entry
  • Swim arrival lunch
  • Safety briefing
  • Event swim cap
  • Restube, radio and whistle safety equipment hire
  • Kayak, paddle and buoyancy aid hire 
  • A medal and goody bag for finishers

Please select the correct ticket for your swim distance or team format.

Choosing the right ticket

At checkout, please add the event ticket that applies to your booking:

  • 12 km solo swim ticket
  • 20 km solo swim ticket
  • Relay team ticket (2 people, 3 people or 4 people) - coming soon

Every swimmer must have an event ticket.

Kayak support is compulsory for solo swimmers. If you are not bringing your own kayak support person, you can hire one at checkout.

Supporters who are not swimming do not need a swim ticket, but they should be included in the accommodation hassle free package if they are travelling with you.

A rare and unique opportunity for a long distance swimming challenge at altitude. The magnificent Serre Ponçon lake is one of the largest artificial lakes in western Europe at 20km long and situated at 800m of altitude in the stunning southern French Alps. 

The Serre Ponçon Swim Challenge is a premium point to point open water swimming event to swim the length of the magnificent Serre Ponçon Lake with 12km and 20km swim distances possible.

This package is designed for swimmers and supporters who want the independence of choosing their own swim distance and kayak support arrangements, while leaving the accommodation, local transfers and practical event logistics to us.

With 3 nights in a choice of local accommodation, local transport, local tips and insight, this hassle-free package gives you the practical support you need around the event. Your swim ticket is selected and added at checkout, according to your chosen distance or team format, so your final price reflects the exact challenge you are entering.

All you need to do is arrive prepared and focus on your swim! Have a look at the swimming routes here.

Swim Challenge and Hassle-Free Package Highlights:

  • Fully supported open water swim
  • Dedicated safety kayak, radio and Restube provided as part of your event ticket
  • Choice of accommodation to suit your budget
  • Swim at altitude for optimal training for a long distance sea-level Channel swim
  • Stunning mountain scenery at every stroke
  • Average water temperature around 18°C - 20°C
  • 300 days of sunshine per year so high probability of good weather for your swim

Safety:

Long distance open water swimming, especially of this distance, is an exceptional undertaking and your safety is our first priority. Every swimmer, will be allocated a kayak, Restube, radio and whistle and will need to bring their own support person or hire a professional kayak support person (available at checkout). The support person will be the person giving you feeds and hydrating you during your swim and will be kayaking next to you throughout the swim to survey your safety. They are backed up by a team of professional lifeguards and first aiders on motorised boats who will be patrolling the swimmers and ready to step in at a moment's notice. For the 20km swim, you have the option to swap support person at the 12km arrival point. 

Swimmers will be required to wear a Restube for the swim (provided by the organisation) and will need to come equipped with green waterproof adventure lights attached to your swim hat so that you can be seen at all times in the water. The kayak support person needs to bring a head torch, ideally with a red light option. The motorised safety boats are also lit.

If you do not have your own kayak support person, we can arrange one locally for you, subject to availability. This is added at checkout.

Please note: kayak support is compulsory for solo swimmers. If you are not bringing your own kayaker, you must add hired kayak support to your booking.

Weather & Conditions:

The lake is situated in the southern French Alps and boasts a Mediterranean climate with cooler evenings. The region records an average of 300 days of sunshine per year so there is a very high probability of perfect weather. The weather pattern of the lake is generally very stable in July with calm, flat water and clear skies at night and most of the day. Towards the end of the day as the warm air rises in the mountains, the wind picks up and the lake can become more agitated. On very hot days this can result in a heat storm at the end of the day, after your swim.

We have carefully chosen the dates to fall just outside of the main French school holiday season so the lake is quieter and with an early morning start to experience the full calm of a night swim and then feel the sun on your back as it rises.

Who Will Love this Trip?

If you love open water swimming and are up for a challenge then this is for you. 12km and 20km open water swim are both serious challenges and should not be attempted without proper training. Whether you are thinking of doing the 12km or 20km, we recommend you start training well in advance with a properly co-ordinated training plan so you are confident your body will manage up to 10 hours of endurance swimming.

As the lake is at 800m, this swim is also a great training opportunity for Channel swimmers as there will be a light effect of altitude compared to swimming at sea level.

Itinerary

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We have arranged a pick up and drop off transfer from the town of Chorges or Embrun (depending on your accommodation option) which is well served by a variety of train and bus links from the major airports and TGV fast train stations.

BY TRAIN / BUS: 

All the accommodation options are near villages on the Gap to Briançon SNCF train line and we will advise you where to get off depending on where you are staying. There are direct train links to Gap and Briançon from Grenoble TGV station or Marseille TGV and  there is also an overnight sleeper train from Paris to Gap.

There is also a regular coach service which operates from Aix-en-Provence TGV directly to Gap. 

You can plan your train journey using the Oui SNCF website. This works from all major European cities. We can also help you with this.

BY PLANE:

The nearest airport is Marseilles (MRS). From Marseille airport there is a regular coach service directly to Gap every two and a half hours from where you can get the train towards Briançon and your village stop. Otherwise you can get the airport shuttle to the main Marseille St Charles train station and get the Briançon train from there, alighting at your recommended stop.  Plan your journey using this website.

Please ask us about transport options when you enquire as we have become pros on getting people to this beautiful region!

Ann Vankrunkelsven - Serre Ponçon Swim Challenge - Hassle Free Package

July 2026

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Hi Sally, one last message to say thank you for this amazing experience. Thanks for taking care of us. When you say hass...

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