These are called "tea tree" or melaleuca or paperbark. The park after rain has vast pools, which is why the area is called a swamp, but the trees feel good in such environment.

Centennial Park, Randwick, NSW, Australia.

Nikon D7000, Nikon AF-S DX NIKKOR 10-24mm f/3.5-4.5G ED.

Photo Settings: 52mm, f/16, 3 seconds, ISO 100.