Dive Site: Lemaire Channel

About Lemaire Channel

Lemaire Channel, a narrow passage between the Antarctic mainland and Booth Island, presents a truly majestic and impressive dive experience. This iconic channel, sometimes referred to as the "Kodak Gap" for its stunning photographic opportunities, is approximately 7 miles long but narrows to about 1700 yards at its tightest point. Divers here explore an environment sculpted by immense ice formations, where the geological grandeur above the surface continues beneath the waves. The topography is characterized by snow-covered peaks that plunge into the ocean, flanked by breathtaking glaciers and icebergs that can stretch over a mile. Underwater, divers navigate through an ethereal world of ice, with shifting sunlight creating a surreal blue glow. The depths here reveal unique marine life thriving in the frigid waters, from colorful anemones and soft corals clinging to volcanic rock to various species of fish and invertebrates. The dive season aligns with the Antarctic summer, from November to March, when the increased light penetrates the water, enhancing visibility and revealing the rich biodiversity. This period also offers opportunities to encounter larger marine animals attracted by abundant krill, including various seals and penguins. Diving here is an expedition into an untouched wilderness, demanding experience and preparation but rewarding with unparalleled sights. Practical diving involves careful navigation around icebergs and consideration of often dynamic conditions. Dives are typically conducted from Zodiacs, with sites often including iceberg walls or shallow ice dives. The experience is intimate, often with dive guides spotting from the surface, allowing divers to explore this unique polar realm in buddy pairs.

Dive site facts: Lemaire Channel

Depth

5–20 m

Typical dive

10–18 m, 30–50 min

Current

Mild to moderate

Visibility

12–240 m

Water temperature

-2–2 °C

Entry

Zodiac / negative entry

Level

Advanced Drysuit Diver

Dive type

Iceberg, wall, macro

Night dive

Not typically offered

Region / port

Antarctic Peninsula

Coordinates

-65.0667, -63.95

Conditions & Currents

Currents within Lemaire Channel can be variable, often influenced by the movement of ice and tides, requiring divers to be attentive to conditions. While some areas may have little current, other sections, particularly narrower passages, can experience stronger flows. Visibility can fluctuate significantly, ranging from crystal clear, reaching hundreds of feet early in the season, to hazier conditions later due to plankton blooms or meltwater from icebergs. Divers should be prepared for cold water, typically between -2 to 2 degrees Celsius, and practice precise buoyancy control to avoid contact with the fragile underwater environment. Entry and exit are primarily from Zodiacs, demanding efficient gear management and coordination with the dive team. All dives are subject to the prevailing weather and ice conditions, which can change rapidly and necessitate flexible planning.

Marine life & sighting chances

Leopard Seal

February–March · occasional

Crabeater Seal

November–December · occasional

Gentoo Penguin

common

Adélie Penguin

common

Giant Isopod

occasional

Starfish

common

Sea Urchin

common

Jellyfish

common

Sea Butterfly

occasional

Soft Coral

common

Anemone

common

Antarctic Bloodless Fish

rare

Dive profile & how the dive runs

Diving in Lemaire Channel typically begins with a backward roll entry from a Zodiac near an iceberg or a suitable wall. Divers proceed to explore the ice formations, often descending along the contours of an iceberg, observing its unique textures and the champagne-like bubbles fizzing from melting ice. The route may follow a shallow ice dive profile, allowing maximum time to appreciate the interplay of light through the ice and the vibrant macro life on the seabed. Depths usually remain conservative, generally between 5 to 20 meters, to minimize risks associated with the remote environment and cold. Turn points are often dictated by air consumption or environmental factors, such as shifting ice. The safety stop is conducted as standard, typically hovering at 5 meters, maintaining visual contact with the Zodiac, which serves as the primary exit point and surface support.

Underwater photography

Underwater photography in Lemaire Channel thrives on wide-angle lenses to capture the immense scale of icebergs and the dramatic light effects. The ethereal blue glow filtering through the ice creates unique lighting, so managing exposure for contrast can be challenging. External strobes are essential for bringing out the true colors of macro subjects like sponges, anemones, and starfish that cling to the volcanic rock or the undersides of ice. Due to the frigid water, battery life for cameras and strobes can deplete quickly, so ensure spares are well-insulated. Practicing impeccable buoyancy is paramount to avoid disturbing the delicate marine life and stirring up sediment. Remember that freshwater melt from icebergs can create unusual buoyancy shifts and hazy visibility, which can impact image clarity and require quick adjustments to your settings.

Combine with nearby dive sites

• Port Lockroy

  Port Lockroy, located on Wiencke Island off the Antarctic Peninsula, offers an extraordinary cold-water diving experience amidst historical…

• Petermann Island

  Petermann Island lies just south of the Lemaire Channel in Graham Land, Antarctica, making it a critical site for wildlife and an extreme…

• Iceberg Graveyard - Pleneau Island

  The Iceberg Graveyard near Pleneau Island in Antarctica is a unique dive site renowned for its congregation of grounded icebergs.

• Danco Island

  Danco Island, located in the Errera Channel off the Antarctic Peninsula, presents an unparalleled cold-water diving experience.

• Paradise Bay

  Paradise Bay, located on the Antarctic Peninsula, offers divers a unique opportunity to explore a wilderness few will ever experience.

Getting there & logistics

Expeditions to Lemaire Channel typically depart from Ushuaia, Argentina, the southernmost city in the world, following flights into its international airport (USH). Trips are generally liveaboard-based, with durations varying from 10 to 14 days, often including crossings of the Drake Passage. Dive operations in Antarctica are highly regulated, and all diving is part of organized expeditions. There are no specific individual permits or fees for diving Lemaire Channel itself, as these are typically integrated into the overall expedition cost. It is common for Lemaire Channel to be part of itineraries exploring the Antarctic Peninsula and its surrounding islands, often combined with shore excursions to penguin colonies or Zodiac cruises to observe wildlife. Divers must ensure their chosen operator is experienced in polar diving and provides all necessary specialized equipment, with some items provided on board like weights.

Safety & environment

Diving in Lemaire Channel, like all Antarctic diving, requires stringent safety protocols due to the extreme conditions and remote location. The nearest recompression chambers are thousands of kilometers away, making deep or decompression dives highly inadvisable. Comprehensive dive insurance that covers cold-water diving, emergency evacuation, and hyperbaric treatment is mandatory. Divers must be drysuit certified with significant cold-water experience and possess excellent buoyancy control. A thorough check-dive is typically required to assess individual weighting and comfort. Ice conditions can change rapidly, potentially impacting entry and exit points, so maintaining situational awareness and adherence to dive guide instructions is critical. All divers must carry a knife and a light, and maintain contact with their buddy, as dive guides generally monitor from the surface. Respect for marine life, especially large predators like leopard seals, is paramount, and maintaining a safe distance is crucial.

Who it suits — and who it doesn't

FAQ

Lemaire Channel FAQ

Liveaboards diving Lemaire Channel

These liveaboards may visit Lemaire Channel on selected itineraries — the exact dive sites depend on departure, weather and conditions.

Plancius

Antarctica

108 guests89 m

$771/day

Ortelius

Antarctica

108 guests90.95 m

$661/day

Hondius Antarctica Diving

Antarctica

170 guests107.6 m

$775/day