The geology of the island is dolomite rock and concrete base in the area around the falls.

[1] The original wooden bridge to the island, added in the 1800s, was replaced in the 20th century.

Spectators can view the falls from Luna Island and the proximate Goat Island, both of which are accessible by pedestrian bridges that cross the rapids of the Niagara River upstream from the falls.

Spectators on Luna Island can stand a few feet away from the Bridal Veil Falls and American Falls by walking across the island.

Representatives of the nearby Schoellkopf Geological Museum often come to Luna Island where they bring photographs and answer questions about Niagara Falls.