St Peter Port
✦Oldest in this niche
144-year heritage (1882)
Learned society and conservation charity founded in 1882, dedicated to the study and protection of the Bailiwick's natural history, heritage, and environment.
Eight groups, founded 1882-2018. La Société Guernesiaise (1882) anchors — 16 specialist sections, ~130 acres across 50 parcels, most island reserves. Alderney Wildlife Trust (2002) is the Channel Islands' only wildlife trust. A 2018 cohort (Pick It Up, Plastic Free Guernsey) runs beach cleans and plastic campaigns; GCV won the King's Award in 2025. —
St Peter Port
✦Oldest in this niche
144-year heritage (1882)
Learned society and conservation charity founded in 1882, dedicated to the study and protection of the Bailiwick's natural history, heritage, and environment.
Castel·Education provider·Est. 2007
Part of Queux Plant Centre
Charitable conservation and education project supplying free native trees to parishes and running allergy-friendly planting workshops.
St Sampson·Est. 1996
Guernsey Conservation Volunteers (GCV) is a registered charity running hands-on conservation work parties to protect the island's natural environment since 1996.
Alderney·Attraction·Est. 2002
Conservation charity managing Alderney's wildlife, nature reserves, and habitat, with guided tours and ecological services.
St Pierre du Bois
✦Active since 1972
Interest society and social members' club, established in 1972 with approximately 60 members, that runs the David Le Conte Astronomical Observatory.
St Peter Port
✦Active since 1935
Volunteer-run environmental charity established in 1935, planting over 1,000 native trees and hedges annually across Guernsey.
Castel·Est. 2018
Community charity, founded in 2018, working to reduce single-use plastic through education, beach cleans, and campaigns.
St Sampson·Est. 2003
Organisation that collects, manages, and shares information about Guernsey’s wildlife, ecology, and natural environment.
St Sampson·Est. 2021
Charity (CH679) specialising in nature conservation and biodiversity, working to enhance the island's natural environment within a generation.
Alderney·Est. 2021
Guernsey charity (CH653) conducting archaeological research, excavations, and surveys in Alderney, established in 2021 with an all-volunteer team including Dr Phil de Jersey MA FSA as Chair.
—·Est. 2018
Part of The Clean Earth Trust
Community litter-picking and environmental awareness campaign, operating as a programme of The Clean Earth Trust.
Castel·Est. 2017
Registered charity promoting the conservation of naturally occurring pollinating insects and their ecosystems across the Bailiwick of Guernsey, including Alderney, Sark, and Herm.
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Part of Royal Society for the Protection of Birds (RSPB)
The local volunteer branch of the RSPB, running wildlife walks, talks, and conservation activities across the Bailiwick.
St Sampson·Est. 2002
Charity, founded in May 2002, that campaigns for improved streets and public spaces for people on foot and maintains an off-road pathway serving the Baubigny Schools.
St Pierre du Bois
Provider of guided walks focusing on wild food foraging, inland and along the seashore, and bushcraft and wood-crafting workshops.