In conjunction with Active Training World, our lake is now available for open water swimming. The lake, formed by the River Lea and set in the valley overlooked by the Mansion House, boasts a 1km swim lap as well as shorter loops including a 150m loop for beginners.

You can enjoy the peaceful solitude that the water brings, safe in the knowledge that you are under the watchful eye of their professional water-safety team who accompany you on the water in kayaks. Whether you are a regular open-water swimmer or dipping your toe for the first time, our friendly team can’t wait to welcome you at lakeside. We welcome swimmers of all standards and ages to enjoy our beautiful lake, from professional triathletes, to channel swimmers and members of the British swimming program, to those who simply wish to take in the peace and beauty of the lake and let the calming waters wash away their worries and concerns.


Location: Luton Hoo Hotel, Luton Road, LU1 3TQ. Entrance to the venue is from the A1081, follow signs to the Open Water Swimming (what3words location of entrance to lakeside ///lots.yarn.behind)


Sessions from 8th May 2021; Tuesday & Thursday evenings 6:30pm – 8:30pm; Saturdays & Sunday mornings 7:30am – 9:30am; Wednesday mornings 6am-8am; Friday lunchtime 12-2pm.
Sessions may be added subject to change in demand. Registration opens 15 minutes before each session. You can swim for as long as you want within the session time, so if you are training for a long-distance challenge, feel free to stay in for longer.


The lake will have three laps available ranging from 150m to 1km.


The sessions are open to under 16’s who must also be confident swimmers. Under 16’s will only be allowed to complete the longer laps with specific permission from the lakeside staff.  Under 12’s must be accompanied at all times in the water by an adult from the same household. All swimmers between 12-16 yrs will be asked to do a monitored 150m loop on their first session. Once accredited in this way they will be allowed to swim the longer laps on their own.


£8 per session


We want you to book with confidence so, if your session(s) can no longer go ahead, you will receive a refund of your entry fee, or a transfer to alternative session. (Booking fees are non-refundable).


If you are not able to attend your session(s) we will transfer you to an alternative session on the condition that we are told with a minimum of 48hrs notice before your session starts. You will not be able to transfer between sessions without a minimum of 48hrs notice.


ActiveTrainingWorld want everyone to enjoy these open water swimming sessions safely and therefore we require everyone to adhere to our social distancing guidelines when attending the sessions. Anyone found to be flaunting the rules will be requested to leave the venue and banned from all future ATW open water swimming sessions.


To book or find out more please visit Active World's website here or contact for more information.