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Based at Willen Lake and Campbell Park fitMk is Milton Keynes' original outdoor gym.

Established in 2008 by Simon A Williams, fitMK strives to give you the drive to achieve your fitness goals. Simon, and his team of fully qualified Personal Trainers and Drill Instructors are passionate about your fitness. They deliver training that is geared to your own fitness level and needs, supporting, challenging, and motivating you to be the best version of yourself.

fitMK runs 36 classes per week at Willen Lake and Campbell Park as well as virtual classes everyday so there's always something to suit your schedule, their classes run in the mornings, lunchtimes and evenings, no matter what the weather!

There are various packages to choose from to suit your needs. For their timetable and to book a session, visit the fitMK website or send them an email

Visit fitMK website

All sessions will be run in accordance with current and guidelines on COVID-19.

Discover our parks

  • Willen Lake North


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    Willen Lake North is home to one of Milton Keynes’ best-known landmarks, the first Peace Pagoda to be built in the western world - and to a rich and varied bird population.

  • Willen Lake South


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    Willen Lake is Milton Keynes’ most popular park. Visitors take part in watersports activities, go cycling, enjoy the playground, try the high ropes course or simply picnic along Willen’s shores. It’s a great place to entertain all ages of family and friends, whether it’s a visit to the café or restaurant, a stroll, trying a beginners’ course in sailing or hiring a pedalo or bike.

  • Campbell Park


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    Located at the heart of Milton Keynes, Campbell Park hosts many of Milton Keynes’ major festivals and events. Its imaginative mix of formal gardens, water features, woodland and open pasture mean it’s an ideal spot to enjoy the changing seasons.