The Arboretum was established on 5.5 hectares of Council Land by the Pearl Beach Community in 1976. It is a sanctuary for rare and threatened plants and animals, devoted to growing plants for conservation, research and education.

The Arboretum is named after Minard Crommelin who fought for conservation in New South Wales all her life and who made Pearl Beach her home from 1942 until her death in 1972.

You may be lucky enough to see some animals and birds including lyrebirds, bowerbirds, fairy-wrens, tawny frogmouths, kookaburras, bandicoots, goannas, water dragons, swamp wallabies and echidnas. They also have over 50 threatened species, bush tucker plants, and koala trees (sadly no koalas since the 1990s), and promote native bee habitat.