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Nature at its finest

Crossing the Antarctic Circle

Roundtrip Ushuaia - Example 15 Day Cruise aboard Sea Spirit
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Embark on a 15-day expedition to and from Ushuaia aboard the Sea Spirit, beginning in Ushuaia, Argentina, the southernmost city in the world. Sail through the iconic Beagle Channel, cross the Drake Passage, and encounter humpback whales and majestic albatrosses. Explore the pristine Antarctic Peninsula and the South Shetland Islands, marveling at towering glaciers, colossal icebergs, and bustling penguin colonies. Witness playful seals, thriving whale populations, and dramatic landscapes in one of Earth’s most remote regions. Enjoy active adventures like kayaking and camping. End your journey with enriching onboard festivities and a smooth return to Ushuaia.
Rolly polly fatty....so comfy right nowKayak quiet waters as you sail to remote polar regionsA specatular iceberg off the coast of AntarcticaA humpbackThe glaciers plung straight into the water at times.Nature at its finest
Highlights
  • Sail through the Beagle Channel with snowcapped peaks in the distance
  • Cruise Lemaire Channel's icy beauty, a photogenic haven for explorers
  • Discover South Shetland Islands, full of abundant wildlife and beauty
  • Cross the Drake Passage's waters, spotting whales and seabirds en route
Activity Level: Variable
Activity options vary depending on destination and operator. Activity level is determined by the range and intensity of activities you choose to participate in. Discuss with your Trip Planner which options are best for you.
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Full Itinerary

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Day 1: Arrive in Ushuaia, Argentina

Welcome to Ushuaia, the southernmost city in the world and the gateway to your Antarctic adventure! Upon arrival at the airport, the friendly staff will warmly welcome you and escort you to a comfortable, high-quality hotel, already included in your itinerary. The rest of the day is yours to explore this vibrant port city and hub of adventure at your leisure.  

For a glimpse into local history and wildlife, consider visiting the fascinating Museo del Fin del Mundo. If you have extra time, you can choose from various outdoor activities tailored to different interests and fitness levels, such as hiking through the stunning landscapes of Tierra del Fuego National Park or spotting wildlife in the scenic Beagle Channel. In the evening, treat yourself to a delicious meal at one of Ushuaia’s many restaurants, where you can savor specialties like Patagonian lamb and fresh Fuegian seafood.

Day 2: Ushuaia | Embark

After enjoying breakfast at your hotel, spend your morning soaking in the charm of Ushuaia. Stroll along the picturesque waterfront, where you can take in stunning views of the snowcapped Martial Range and the southernmost peaks of the Andes. Use this time to shop for unique souvenirs or any last-minute essentials, such as cold-weather gear—though rest assured, soon receive your parka to keep and waterproof boots to borrow once aboard the ship. For lunch, the lively Avenida San Martín offers a variety of cafés, parrillas, and gelato shops to satisfy your appetite.  

In the afternoon, transfer to the pier, where a warm welcome awaits you aboard the luxurious expedition vessel M/V Sea Spirit. Settle into your spacious suite and take some time to explore the ship, your comfortable home for the journey ahead. Once underway, the adventure begins with engaging briefings and introductions from your expedition team. Following the first of many exceptional dinners on board, step out onto the open deck to soak in the breathtaking scenery and the golden evening light as you sail through the iconic Beagle Channel.

Day 3-4: Crossing the Drake Passage

After passing the islands of Tierra del Fuego, turn south to begin your crossing of the Drake Passage. Watch for humpback and fin whales along the way. The majestic wandering albatross and other graceful subantarctic seabirds are common in these waters and can readily be viewed from panoramic open decks and balconies.

You also cross the Antarctic Convergence, the biological boundary of the Southern Ocean. The ship’s stabilizing fins provide comfort in the event of rough seas. Briefings, bio-security procedures, and presentations by your lecture staff prepare you for your arrival in Antarctica. You hope to arrive in the South Shetland Islands on the evening of your second day at sea.

Day 5-12: South Shetland Islands and Antarctic Peninsula

Within the next few days, you explore the South Shetland Islands and the Antarctic Peninsula in-depth. This region contains some of Antarctica's most impressive scenery and the best wildlife viewing. Sheltered bays and channels sparkle with ice, reflecting towering mountain peaks coated in permanent snow and immense glaciers. Icebergs of every size and description complete an image of incomparable beauty. Waters rich with krill are home to many marine mammals and seabirds. The whole area is alive with penguins foraging at sea and forming large rookeries at special places on land. Here, you can also find Antarctic research bases of various nationalities.

The South Shetland Islands are the northernmost islands in Antarctica and will likely be your first area of exploration. This wildly beautiful island chain contains many landing sites with historical significance and abundant wildlife. Explore the Antarctic Peninsula's supremely picturesque Gerlache Strait area, a pristine wilderness of spectacular white landscapes, colossal icebergs, obliging marine mammals, and bustling penguin colonies. You plan to pass through the famous Lemaire Channel, also known as "Kodak Gap," because of the photogenic way the narrow channel reflects the image of sheer snowy mountains.

On this special voyage, you have additional days to push even further south in your attempt to cross the Antarctic Circle. The sublime icescapes in Crystal Sound and beyond are particularly austere, the weather is especially wild, and the waters are full of constantly shifting ice. Very few people have ventured this far south. This is a true expedition.

Throughout the islands and on the mainland, you can find large colonies of Gentoo, chinstrap, and Adélie penguins, sometimes side by side. It is a dramatic time in the colonies. While some parents remain at the nest to guard against skua attack, others go fishing in seas patrolled by predatory leopard seals and killer whales. Meanwhile, fluffy chicks are starting to explore away from their nests. Also, humpbacks and minke whales have arrived in great numbers, and the feeding frenzy is in full swing. Crabeater and Weddell seals abound in these highly productive waters.

In this rugged yet accessible environment, superb wildlife viewing is best complemented by active adventure. For sea kayakers, the wildlife-rich waters of Antarctica offer many chances to paddle with seals and penguins in some of the world's most scenic waterways. To make the most of your time on the White Continent, you can also spend a night camping ashore, surrounded by untamed Antarctic nature.

This is expedition cruising at its most authentic. Your precise route and exploration opportunities will be shaped by weather and ice. Your experienced captain and expedition leader will continually adjust plans to take maximum advantage of the conditions in this challenging polar environment. 

Day 13-14: Back across the Drake Passage

It is now time to head back across the Drake Passage toward South America, but the adventure is not quite over. Seabirds are your constant companions, and whale encounters in these wild waters are always possible. This is also the time for festivities such as the Captain’s Farewell Cocktail and the end-of-voyage slideshow. Finally, as you enter the calm Beagle Channel, enjoy a night of smooth sailing toward Ushuaia.

Day 15: Ushuaia, Argentina | Disembark

  • 1 Breakfast
After yet another delicious breakfast on board, you bid a fond farewell in Ushuaia. Group transfers to the airport or the city center are provided if you wish to spend more time here. As you look back on your wonderful experience in Antarctica, you may already be looking forward to your next polar adventure!

Ship/Hotel

Sea Spirit

Travelers board a Zodiac to get a closer look at the terrain and wildlife
Sea Spirit
Outdoor Bistro at the Jacuzzi area of the Sea Spirit

Dates & Prices

My Preferred Start Date

  • Feb 27, 2026from $16,695
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Per person starting at
$16,695
Sea Spirit
Select a Date
Triple Classic
Averaging 226 sq ft. Two twin beds (convert to a King) and a sofa bed, picture window, two wardrobes and en suite facilities.
Sea Spirit
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Main Deck Suite
Averaging 248 sq ft. Two twin beds or a King Size bed, minimum two portholes, and en suite facilities.
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Single Suite
Averaging 21 square meters/226 square feet, these cabins are located on the Oceanus Deck. They feature a picture window (it may be covered during rough sea crossings), two wardrobes, and a king-size bed.
Sea Spirit
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Classic Suite
Averaging 226 sq ft. Two twin beds or a King Size bed, picture window, two wardrobes, and en suite facilities.
Sea Spirit
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Superior Suite
Averaging 215 sq ft. Two twin beds or a King Size bed, picture window overlooking outside walkway, and en suite facilities.
Sea Spirit
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Deluxe Suite
Averaging 258 sq ft. Two twin beds or a King Size bed, private balcony, walk-in closet or wardrobe, and en suite facilities.
Sea Spirit
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Premium Suite
Averaging 323 sq ft. Two twin beds or a King Size bed, private balcony, lounge area, and en suite facilities.
Sea Spirit
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Owner's Suite
Averaging 463 sq ft. King size bed and sofa bed, separate living room with game and meeting area, private deck, and en suite facilities with jetted bathtub.

Notes

Solo Travelers:
All rates posted are per person based on double occupancy. Single supplement: 1.7 for Main Deck and Classic, Superior Suite; twice the posted price for Deluxe, Premium and Owner's Suite.
Included
  • 14 Breakfasts, 13 Lunches, 13 Dinners
  • 14 Nights Accommodations
  • Accommodations as listed
  • Ground transportation as listed
  • Activities as listed
  • Meals as listed
  • Access to a 24-7 Emergency line while traveling
  • Port Fees
  • Digital Voyage Log
  • Pre-departure materials
  • 24-hour tea and coffee station, complete with cookies for a quick energy boost
  • Scheduled landings and excursions (weather permitting) to explore breathtaking landscapes
  • Expert leadership from the experienced Expedition Leader and top-notch Expedition Team
  • Comfortable rubber boots for shore landings during your cruise
  • Wi-Fi on board
  • Welcome and Farewell Cocktails   
  • Group Transfer to Airport or Central Location Upon Disembarkation
  • Group transfer from the airport to the hotel on the day prior to embarkation
  • Group transfer to the ship for embarkation on Day 2
  • A stylish branded Poseidon Expeditions parka to take home as a cherished memento
  • IAATO fees and governmental taxes
  • 1 pre-voyage night on Day 1 in Ushuaia
Excluded
  • Gratuities
  • Travel Insurance
  • Personal Expenses
  • Flight costs (please request a quote)
  • Additional excursions during free time
  • Fuel and transportation surcharges (when applicable)
  • Passport or Visa fees
  • The cost of any applicable medical tests (such as COVID-19) or vaccinations required either by a national government or Poseidon Expeditions before, during or after the cruise;
  • Kayaking
  • Soft drinks and alcoholic beverages other than those for special events and celebrations
  • Mandatory Emergency Evacuation Insurance to a minimum benefit of US$ 200,000 per person
  • Camping

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The trip might have been the absolute best of our lifetime (thus far). We particularly want to commend our guide Peter in the Guilin area-he was so incredibly attentive, energetic, enthusiastic-and absolutely dedicated to ensuring that our meals were 100% vegetarian.
Jack Charney

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