IIEM25 will celebrate 25 years of the Inter-Island Environment Meeting bringing together environmentalists, conservationists, and other environmentally-minded organisations, people from the UK Crown Dependencies and other islands in Britain and Ireland. The 25th event is to be held for the first time in the Isle of Man after being set up and hosted in the Channel Islands for 24 years. The theme for IIEM25 will be Collaboration for Greater Impact.