Trinity Beach is a coastal suburb of Cairns in the Cairns Region, Queensland, Australia. In the 2021 census, Trinity Beach had a population of 6,594 people. Trinity Beach is approximately 20 kilometres from the Cairns city centre and approximately 6.6 km from Smithfield. Trinity Beach is also a beach stretching for about a mile on the eastern coast of Au…Trinity Beach is a coastal suburb of Cairns in the Cairns Region, Queensland, Australia. In the 2021 census, Trinity Beach had a population of 6,594 people. Trinity Beach is approximately 20 kilometres from the Cairns city centre and approximately 6.6 km from Smithfield. Trinity Beach is also a beach stretching for about a mile on the eastern coast of Australia bounded by the Coral Sea. The suburb itself is approximately 2 km wide.
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