open water swimming is available from Wednesday 6 May at Upton Warren.
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Dive into a refreshing open water swim at Upton Warren. Our stream-fed lake offers a natural swimming experience with regularly tested water quality, and all sessions are supervised by lifeguards both on and off the water.
Swimmers are required to follow a 'clockwise' direction around the lake. Changing rooms and showers are available for your convenience.
2026 Season Schedule:
- When: Wednesday evenings, 6pm – 7:30pm
- Season Duration: Wednesday 6 May – Wednesday 9 September
Important Notes:
- Sessions will only run if the water temperature is at least 11.5°C.
- No walk-ins permitted - online booking is required.
- Online bookings close 30 minutes before the start of each session.
Important Swim Requirements:
- All swimmers must wear a brightly coloured swimming hat.
- Tow floats are strongly recommended for all swimmers.
- A well-fitting wetsuit is highly recommended, providing both warmth and buoyancy.
- If the water temperature is under 16°C, wearing a wetsuit is compulsory. However, if the water temperature is above 16°C, you may still find it colder than expected, especially if you're new to open water swimming.
Current Water Temperature: Please see our Facebook page for updates on the water temperature.
Useful information
Refunds
- Up to seven days prior to your activity date you can cancel an existing booking and receive a full refund. You can also amend your booking free of charge.
- Up to five days prior to your activity date you can amend your booking free of charge.
- Within five days of the booking date, if Aztec Adventure Ltd are operational, you will not be entitled to move your booking, or receive any refunds for cancellations.
- To make a change to your booking, please email: hello@aztecadventure.co.uk and include your booking reference number with your request.
Group Adventures
We can offer a whole variety of packages for different occasions. Please see the Group Adventures section of our website for more information. If you would like to know more fill in a contact form with your requirements and we’ll get in touch with more information, availability and prices.
Pets and assistance dogs
We do not allow dogs at Aztec Adventure Upton Warren:
Aztec Adventure Upton Warren is very fortunate that its home is on a Site of Special Scientific Interest (SSSI). We have a duty to protect our flora and fauna; a condition of this is that Natural England do not allow dogs on site.
We allow dogs at Aztec Adventure The Lost Valley:
Aztec Adventure The Lost Valley welcomes well behaved dogs and their owners! The Valley is dog friendly with walks, dog events and benefits from having some dog-friendly stores.
We allow dogs at Aztec Adventure Lower Moor:
Dogs are allowed at Aztec Adventure Lower Moor but must be on a lead at all times. Please note that dogs are not allowed in the lake.
Please note no other animals are permitted at Aztec Adventure The Lost Valley and Aztec Adventure Lower Moor.
All of our sites do allow assistance dogs.
Wildlife and fish
There are ducks and geese that live on and around the lakes at Upton Warren and Lower Moor. There are also fish in the lakes, both large and small.
What happens with bad weather?
Rain: Our sessions will still go ahead if it’s raining - after all, you’re going to get wet anyway!
Lightening: If we observe lightning and hear thunder in the vicinity, we must pause the session for safety reasons. Ensure all participants are on the shore. We unfortunately will not be able to restart the session for at least 30 minutes. If conditions improve and we can safely resume without affecting other sessions, we will do so. If not you will be offered alternative activities, times or dates to return within one year and rescheduled free of charge.
Alternatively, you may opt to receive a gift card for the full value of your booking, which can be used to rebook at a date and time that suits your group within 12 months.
In such circumstances, you will not be entitled to a refund, in part or whole.
Your safety is our priority, and we appreciate your understanding.
Carers
Visitors who have any of the below documentation are entitled to one free carer ticket on our Adventure Activities.
- Disability living allowance
- Attendance allowance award letter
- Access card
- Personal independence payment letter (dated within the last 12 months) or Letter from GP or consultant (dated within the last 12 months) confirming the need for a full-time carer. This does not need to be a letter of diagnosis.
Please email: hello@aztecadventure.co.uk with one these documents to request your free carer ticket.
Blue Light Card Discounts
Please note: We do not offer Blue Light Card discounts.
For the best prices, we recommend booking online. On-the-day pricing may vary, and all activities and courses are subject to availability.
Do you hire wetsuits?
We don’t offer open water swimming wetsuit rental ourselves, as a different type of wetsuit is required compared to those used on the Aqua Park. However, if you’re looking to hire or purchase a wetsuit, we recommend contacting West Midlands Wetsuit Hire. You can reach them on 07951 674248 or by email at: westmidlandswetsuithire@gmail.com.
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TESTIMONIALS
We love what we do at Aztec Adventure but don’t just take our word for it! See all the lovely things our customers have to say about us.
Ready to start your Adventure?
Then jump right in! You can book our Adventure Activities and Adventure Courses online via our booking system. Click on the 'Book Now' button below.