There are three time capsules located in and near Cairns city.

The first is located under the monolith facing Sheridan Street in the gardens of the Cairns Civic Theatre and was positioned to mark the completion of this project in 1973. It contains history on people who served in World War 2, the 51st RQR, the Mayor at the time and other notable people of Cairns.

The second is located under the specially designed paving square immediately outside the gate at the southern end of the Cairns City Council administration building in Spence Street. The capsule was sealed on 4 June 1999 to commemorate Queensland Day celebrations. It contains 45 items contributed by a wide cross-section of the community, with special messages to the people of Cairns and district in the year 2099.

The third capsule is buried on the Cairns Esplanade, adjacent to Fogarty Park, and was placed to mark the completion of the project in 2004. This capsule is due to be opened in October 2024.