Head for a short stroll on the Common as the sun sets, returning to base for a special screening of award winning film, The Invisible Mammal

Bats are an elusive but common presence on Barnes Common. As their activity begins to decrease for the winter, join us for a special bat walk on the Common. We'll use devices to detect their ultrasonic calls and look up to the skies to try spot their speedy silhouettes.

The Invisible Mammal is a feature-length documentary film about bats, infectious disease, and women in science. A film that combines nature, science and adventure, The Invisible Mammal will immerse you in the world of bats and forever change the way you feel about these amazing little creatures.

"The bat scientists that take a central role in this film have a love for their subject that is totally infectious. It's hard not to be won over... Seeing bats through their eyes connected me to the sublime moments like the emergences but also to their ecological grief." - public review on Letterboxd

The pre-screening walk is a short, family friendly experience, giving people the opportunity to use a bat detector, and hopefully (though there are no guarantees!) encounter bats. For a lengthier experience, please choose our Bat Walk at Leg o'Mutton Nature Reserve.