On this island, the soft sand beaches are replaced by a rough, rocky terrain. According to Anderson (1950), Miocene volcanic rocks similar to those exposed on Carmen over Isla Danzante. Johnson (1924) believed the island represents less elevate fragments than that mass with similar structures observed in the Sierra la Giganta, covered with sea water due to changes in the sea level.

Danzante has approximately15 beaches or campsites. The island is commonly used by fisherman or kayaking companies, which during the winter season work inside the Bay of Loreto National Park.

Kayak camping is one of the more popular aquatic activities and one of the more productive ones for the community, together with the observation of the Blue Whale. Danzante Island is very popular among divers and snorkelers, since its volcanic origin has allowed the development of rocky reefs that are very attractive to visit.

Among the marine fauna are invertebrates of great beauty, diverse shapes, and abundance like fan corals, clams, sea urchins, sea stars, worms and hermit crabs; cephalopods, such as octopus and squid; echinoderms like the giant sea cucumber; fire corals, sea fans, black coral, polychaetes, and snails. In addition, some taxonomic groups are important pharmacologically, such as sponges, sea fans, sea stars, and holothurians.

The flora of Danzante is very similar to that found on the peninsula and on Carmen Island and very close to both. The terrestrial flora of the islands of the Bay of Loreto National Park is composed of 262 species of plants typical of xeric scrublands; Danzante has 136 species, seven of which are endemic — two species and five at the subspecies level.

On the islands within the Bay of Loreto National Park is distributed a diversity of terrestrial vertebrate species that, because of their isolation and the climatic and ecological conditions, have evolved to produce significant endemism of small mammals and reptiles. Danzante Island has two species of endemic mammals at the subspecies level, Chaelodipus spinatus seorus (mice) and Neotoma lepida latirostra (rat).