More than 140 people watched as the sun shone across Redland Bay on to the memorial, during its first Anzac Day service.
Coochie residents and Redland City Council banded together to get the memorial built and blessed four days before the service.
Coochiemudlo RSL president Douglas Cope told welcomed the crowd before guest speaker RSL member Graeme Roberts-Thomson recounted events of April 25, 1915.
“It was an exceptional service and we are delighted that the memorial was built in just the right spot to capture the sun’s rays as they spread across the water,” Mr Cope said.
“The service at the new memorial was a very proud moment for everyone living on the island.”
After the service, the Coochiemudlo Progress Association served breakfast and island resident Russell Jackson held a sausage sizzle.