Half Moon Island, South Shetland Islands

A crescent-shaped isle rich in wildlife and ice.

A massive colony of Chinstrap penguins on the snowy beach of Half Moon Island, Antarctica, with a stunning backdrop of snow-covered mountains and a calm blue sea.

Overview

Half Moon Island, South Shetland Islands Cruise Port

Half Moon Island is a small, crescent-shaped island located in the South Shetland Islands archipelago, off the Antarctic Peninsula. This rugged and rocky island is renowned as a vital breeding ground for a large colony of chinstrap penguins, making it a prominent destination for Antarctic expedition cruises. Its landscape features raised cobbled beaches, rocky outcrops, and steep scree slopes, framed by the dramatic backdrop of Livingston Island across the waters.

Beyond its prolific penguin population, Half Moon Island supports a diverse array of Antarctic wildlife, including various seabirds, seals, and occasional whales patrolling its shores. It also hosts the Argentinian Cámara Base, a summer scientific research station. The island's pristine environment offers a profound sense of remoteness and a unique opportunity for up-close wildlife observation in one of the world's most untouched regions.

Top Things to Do in Half Moon Island, South Shetland Islands

Observe Chinstrap Penguin Colonies

Witness the bustling activity of chinstrap penguin colonies firsthand. Observe their nesting behaviors, social interactions, and waddling commutes to and from the sea.

Tip: Maintain a respectful distance (typically 5 meters) from the penguins unless they approach you, to avoid disturbing their natural behavior. Listen to your expedition guides' instructions.

Spot Other Antarctic Seabirds

Keep an eye out for other fascinating seabirds that breed on the island, including Antarctic terns, kelp gulls, skuas, snowy sheathbills, and Wilson's storm petrels. Half Moon Island is an Important Bird Area (IBA).

Tip: Bring binoculars for better viewing of birds in their nesting sites and in flight. Be aware that terns can be defensive of their nests.

Search for Seals on the Beaches

Look for seals hauled out on the cobbled beaches and rocky outcrops. Weddell seals and Antarctic fur seals are regularly seen, and occasionally leopard seals might be spotted on ice floes nearby.

Tip: Fur seals can camouflage well against the rocks. Always maintain a safe and respectful distance from all seals.

Photograph the Scenic Landscape

Capture the stunning Antarctic scenery. Half Moon Island offers dramatic contrasts of black volcanic rock, white snow, and vibrant blue ice, with the majestic mountains of Livingston Island providing a spectacular backdrop.

Tip: Pay attention to light conditions for the best photographic results. Wide-angle lenses are great for landscapes, while telephoto lenses are essential for wildlife.

Visit the Argentinian Cámara Base (External View)

Observe the Argentinian Cámara Base, a summer scientific research station located on the island. While direct access is usually not permitted, seeing the station offers insight into the human presence and scientific efforts in Antarctica.

Tip: Your expedition guides will provide context about the station's role and research activities.

Enjoy a Zodiac Cruise around the Island

Participate in a Zodiac cruise around Half Moon Island if conditions permit. This allows for closer views of the coastline, ice formations, and opportunities to spot marine wildlife that may not be visible from the landing site.

Tip: Dress warmly in waterproof layers, even on a Zodiac, as it can be colder on the water and splashes are possible.

Overview