Historic Casco Bay Home on Great Diamond Island

Historic Casco Bay Home on Great Diamond Island in Portland, United States. 148 Mckinley Ct

Historic Casco Bay Home on Great Diamond Island in Portland, United States. Same price as direct booking, with a 1-tonne UN-verified CO₂ offset attached to every reservation, funded by IMPT from commission.

How IMPT pays for the carbon offset

Every booking on IMPT triggers a 1-tonne UN-verified CO₂ retirement on Ethereum, recorded against the booking ID. The offset is funded from IMPT's commission, not from the room rate — your price matches the property's standard direct rate.

Facilities