Manx Wildlife Trust (MWT) was founded on 6th March 1973 and is the Isle of Man’s leading nature conservation charity.
As of May 2026, MWT manages 37 nature reserves, including the Calf of Man which is managed with and on behalf of Manx National Trust. These reserves total , or around 2% of the Isle of Man and include:
NameAcquiredAreaNotesAust2016 Ballachrink2011 Part of the Renscault & Ballachrink Bird SanctuaryBallachurry2016 Ballamooar Meadow1994 Ballanoa2026 Barnell Reservoir1974 & 1984 Part of the Ballamoar Bird Sanctuary (Patrick)Billown2023 Includes Rosehill Quarry ASSIBreagle Glen & Cronk Aash1988, 1991 & 2010 Calf of Man N/A Owned by Manx National Trust, co-managed in partnership with Manx Wildlife Trust since 2006. Candidate Ramsar site and forms the "Calf of Man" Important Bird & Biodiversity AreaClose y Corvalley2026 Close e Quayle1994 & 2003 Close Sartfield1987Part of the Ballaugh Curraghs ASSI and Ramsar SiteClose Umpson1995, 2026 Part of the Ballaugh Curraghs ASSI and Ramsar SiteClose y Vaillee2026 Part of the Ballaugh Curraghs ASSI and Ramsar SiteCooildarry1976 & 1979 Creg y Cowin2023 Creggans2025 Part of the "Isle of Man Hills" Important Bird & Biodiversity AreaCronk y Bing1993An Area of Special Scientific Interest and from July 2026 a National Nature ReserveCronk y Chule2026Curragh Feeagh1986 Curragh Kiondroghad (Onchan Wetlands)1988 & 1990 Dalby Mountain1995 & 2024 Candidate Ramsar site, Part of the "Isle of Man Hills" Important Bird & Biodiversity AreaDalby Mountain Fields1995 Part of the "Isle of Man Hills" Important Bird & Biodiversity Area Dobbie's Meadow2013 Earystane1998 Fell's Field1998 Glen Auldyn2025 Part of the "Isle of Man Hills" Important Bird & Biodiversity Area Glen Dhoo1995 Glion Darragh2024 Goshen1995, 1998, 2008 & 2023Part of Ballaugh Curraghs ASSI and Ramsar SiteHairpin Woodland Park2019, 2022, 2024 & 2025 Lough Cranstal1989 & 2022 Candidate Ramsar siteLough Gat e Whing2016 Miss Guyler's Meadow1989 Moaney & Crawyn's Meadows1995 Part of the Ballaugh Curraghs ASSI and Ramsar SiteMullen e Cloie2008 The Keyllagh2024 Total This represents approximately 2% of the Isle of Man's land area (57,198ha)
Nature Discovery Centres
The Manx Wildlife Trust also operates seasonal "Nature Discovery Centres" at both the Ayres National Nature Reserve and Scarlett (Malew), along with one co-located with their shop beneath the Manx Wildlife Trust offices in Peel.
References