
Carshalton - Wilderness Island Nature Reserve
An outdoor nature-reserve in Greater London

Wilderness Island is a 2.7-hectare nature reserve located in Carshalton, London, England, nestled between the River Wandle and the Wrythe. Designated as a Local Nature Reserve and a Site of Metropolitan Importance for Nature Conservation, it is owned by Sutton Council and managed by the London Wildlife Trust. The reserve features diverse habitats, including woodlands, meadows, and wetlands, providing a sanctuary for various wildlife species. Notable trees such as black poplars and a variety of birds, including woodpeckers, kingfishers, and grebes, inhabit the area. The ponds within the reserve support wetland plants and serve as crucial habitats for amphibians and insects. Historically, the site dates back to the 17th century, originally serving as the location for copper mills and later as a pleasure garden. Today, it offers a tranquil environment for visitors to explore and appreciate nature.
At a glance
Entry
Free / cheap

What parents should know
activities
Wildlife Watching
Bring binoculars and a field guide to enhance your bird and butterfly watching experience.
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Today
Overcast
29°C
A bright, hot day — bring water and sunscreen
Opening hours
Opening hours could not be confirmed.
Last checked 24 May 2026, 11:09.
Nature reserve with unrestricted public access - no fixed opening hours
Plan your visit
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