The rabbit colony was established by John Adams Cummins in the 1880s when he ran the nearby Waimānalo plantation.

[2] The rabbits were eradicated about a hundred years later because they were destroying the native ecosystem, an important seabird breeding area.

This sand deposit, located above the reach of the normal waves, is about 30 ft (9.1 m) wide and curves around to the western side of the island.

These series of eruptions were responsible for creating other tuff cones such as Punchbowl Crater.

Mānana is a State Seabird Sanctuary—home to over 10,000 wedge-tailed shearwaters, 80,000 sooty terns, 20,000 brown noddies, 5–10 Bulwer's petrels, and 10–15 red-tailed tropicbirds, and numerous Hawaiian monk seals.