These baleen whales arrive between May and December, for mating and giving birth, because the water in the gulf is quieter and warmer than in the open sea.

A diverse range of birds lives in the peninsula as well, with at least 181 species recorded, including the Cape petrel.

The peninsula, along with neighbouring Punta León and Punta Loma, has been designated an Important Bird Area (IBA) by BirdLife International because it supports significant populations of Magellanic penguins (with about 150,000 breeding pairs), rock and imperial shags, kelp gulls, and South American, Cabot's and royal terns.

[4] It has a climate typical of northern Patagonia that is modified with interactions between atmospheric circulation patterns and the adjacent ocean.

[6][5] The El Niño Southern Oscillation strongly influences the climate of the peninsula.