One of the most historical suburbs of lake Macquarie. In the late 1930’s Rathmines became the RAAF Base of the Catalina flying boats. Rathmines was an important base for the Catalina flying boats and their Squadrons, which played a significant role in Australia’s RAAF defensive operations during WWII. The Rathmines RAAF seaplane base played a pivotal role in the defence of Australia in World War II. It was the largest seaplane base in the Southern Hemisphere and was the longest serving during the war effort. It is the most intact example of an RAAF WWII seaplane base in Australia as you can still see the original ramp and infrastructure today.