Janssonius is a deluxe standard Polar vessel runs by Oceanwide Expeditions, it offering both scuba diving and Polar cruise explorations in the Antartica and Arctic, it can accommodate up to 170 guests.
Date 20/04/24 to 29/04/24
Duration 9 nights
Boat Janssonius
Destination Antarctica
Departure St Helena
Arrival Praia
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Janssonius is the most advanced Polar Class 6 passenger vessel, exceeding all the latest green requirements of the Polar Code. Build in 2021, measuring 108.6m in length and 17.6m in breadth, with crusing speed at 15 knots.

Janssonius is meeting the latest and highest Lloyd’s Register standards for ice-strengthened cruise ships. Surpassing the requirements of the Polar Code adopted by the International Maritime Organization (IMO). It represents the most flexible, advanced, innovative touring vessel in the polar regions, thoroughly optimized for exploratory voyages that provide you the utmost first-hand contact with the Arctic and Antarctica.

Janssonius uses LED lighting, steam heating, bio-degradable paints and lubricants, and state-of-the-art power management systems that keep fuel consumption and CO2 levels minimal. This means that when you sail aboard Janssonius, you get to enjoy the exotic landscapes and wildlife as much as possible while impacting them as little as possible.

One deck consists of a large observation lounge and separate lecture room, which are reserved for a wide variety of interactive workshops, exhibitions, and performances particular to Janssonius. Though elegantly designed in stylish mid-century modern décor, this vessel holds true to Oceanwide’s distinctive cozy and informal atmosphere.

Janssonius has three separate gangways and a sheltered indoor Zodiac boarding area that can also be used for special outdoor activities, such as kayaking.

Janssonius serve buffet-style breakfasts on board, lunches are often buffets as well. Dinners include a choice of main courses, and these are served at the table. Snacks such as ready-made soups, cookies, and crackers are available 24 hours per day free of charge. Water, coffee, and tea served with all meals, free of charge. Other drinks are available at a reasonable price.

Janssonius carries 72 crew and staff members, including expedition and hotel staff, all of whom will be at your service during your polar expedition trip. Hondius is equipped with two main engines and can reach a maximum speed of 15 knots.

Passengers on a typical voyage range from in their 30s to their 80s, with the majority usually between 45 ― 65. Our expeditions attract independent travelers from around the globe who are characterized by a strong interest in exploring remote regions.


Janssonius has 80 guest cabins, it can accommodate up to 170 guests per trip:

All cabins feature ensuite bathroom (with hair dryer, shampoo and shower gel), flatscreen TV (satellite TV system, but reception cannot be guaranteed), desk & chair, telephone and WiFi (supplemented), cabinet, wardrobe, safe deposit box. We advise that you use a softshell suitcase as there is not much space for large suitcases in the cabins.

The power supply is 220 volts, 50 cycles. The wall plugs accommodate two thick round pins like those found in most European countries.

6 Grand Suites with private balcony :
Located on the deck 7, 22 square meters in size. Comes with 1 double bed, sofa, refrigerator, coffee & tea maker, bathrobe, 1 double window and private balcony.

8 Junior Suites :
Located on the deck 7, 20 square meters in size. Comes with 1 double bed, sofa, refrigerator, coffee & tea maker, bathrobe, 1 double window.

8 Superior Cabins :
Located on the deck 6, 20 to 21 square meters in size. Comes with 1 double bed, sofa, refrigerator, coffee & tea maker, bathrobe, 1 double window.

11 Twin Deluxe Cabins :
Located on the deck 6, 19 to 22 square meters in size. Comes with 2 single beds (side by side), sofa, refrigerator, coffee & tea maker, bathrobe, 2 windows.

14 Twin Window Cabins :
Located on the deck 4, 12 to 14 square meters in size. Comes with 2 single beds (side by side), small sofa, 1 window (Please be aware that the view from some windows might be partially obstructed due to the design requirements of the ship).

27 Twin Porthole Cabins :
Located on the deck 3, 12 to 14 square meters in size. Comes with 2 single beds (side by side), small sofa, 2 portholes.

2 Triple Porthole Cabins :
Located on the deck 3, 12 to 14 square meters in size. Comes with 1 upper berth & 2 lower berths, small sofa, 2 portholes.

4 Quadruple Porthole Cabins :
Located on the deck 3, 15 to 16 square meters in size. Comes with 2 upper & lower berths, small sofa, 2 portholes.


  • Polar diving activity is offered as a supplement on select trip.
  • Group size: minimum 8, maximum 24 divers per trip.
  • 6 divers per dive guide, there are 4 dive guides onboard.
  • 1 - 2 dives per day, one in the morning and one in the afternoon.
  • Divers must be experienced with cold-water, dry-suit diving.
  • A min. 30 logged dives in cold-water, dry-suit diving is required.
  • The ability to dive depends on local ice and weather conditions.
  • If divers don't meet the necessary experience, they can be excluded, no refund.
  • Dives are made from the Zodiac boats, max. depth is around 20 meters.
  • Scuba tanks, compressors, weights, diving essentials are provided.

Dive Equipment to bring

  • Pressure gauge
  • Compass watch
  • Knife and torch
  • Mask, fins, and snorkel
  • Dry suit with hood, two sets of warm underwater garments
  • Dry gloves or 7mm wet gloves/mitts adequate for sub-zero waters
  • Stabilizing jacket or BC with quick-release capability and sufficient lift capacity
  • Two freeze-protected regulators. (We dive with special bottles that have two separate outlets, and we use 12L steel tanks fitted with a Y or H valve configuration and DIN or Yoke (INT) adaptable connections.)
  • Do not bring any new equipment you have not tested in the water.

Shore excursions and Zodiac cruises

  • Guided shore excursions, walks, wildlife spotting, and Zodiac cruises are included.
  • Daily programs will be announced during briefings, displayed around the vessel.
  • The planned activities are always subject to change due to local conditions.
  • Expeditions cruises are trips that focus on maximum contact with local wildlife.
  • For expedition cruises, guests must be able to walk several hours per day.
  • For regular cruise, there will be a series of landings, each several hours long.
  • For expedition cruises, land 2 or 3 times every day - depends on the program.
  • When an activity is cancelled due to weather (or any other) conditions, we will offer an alternative activity when possible. We may also reschedule the activity for another time. If neither option is possible due to local conditions, however, we can offer no refund for the missing activity. This is the unpredictable nature of expedition travel.

What to Pack

  • Waterproof trousers and jacket against wind, rain and salt spray.
  • Furthermore thermal underwear, fleece jackets, warm gloves and a warm hat.
  • A down-jacket, a waterproof jacket and pants (minimum 15,000mm rating).
  • Mittens and gloves, Woolen cap, Warm socks, Waterproof backpack etc.
  • Sunglasses, Sunscreen SPF 30+, Facial protection.
  • Pair of binoculars, Camera and plenty of memory cards/film
  • High rubber boots / Neoprene boots will be provided to all guests for all landings.
  • Snowshoe walkers should bring mountain boots for comfort, grip and stability.
  • Kayaking : Neoprene gloves are best for keeping your hands warm.
  • Mountaineers must bring their own mountain boots with sufficient ankle support and stiff sole.

Activities Cost

  • Shore base walking : No surcharge for all guests during the cruise
  • Hiking : No surcharge. 2-3 hours or longer. Sign up upon reservation
  • Snowshoeing : No surcharge. Free use of snowshoes.
  • Birdinig : No surcharge. Sign up upon reservation.
  • Photo Workshop : No surcharge. Sign up upon reservation.
  • Navigational workshop : No surcharge. Everyone can participate.
  • Acoustic workshop : No surcharge. Open to all participants.
  • Mountaineering : Free of charge during "Basecamp" trips
  • Camping : Surcharge needed. Free of charge during "Basecamp" trips
  • Diving : Surcharge needed, divers must meet the requirments to apply
  • Kayaking : Surcharge needed. Free of charge during "Basecamp" trips
  • Ski Mountaineering : Surcharge needed. Need to bring own ski equipment
  • During “Basecamp” departure : all offered activities (including camping, kayaking, snowshoe/hiking, mountaineering, photo workshops as well as our standard included shore excursions and zodiac cruises) are free of charge.

The Climate in Antarctica

Antarctica is the coldest and also the windiest continent in the world. The lowest temperature on Earth was recorded in Antarctica. There are three climatic regions in Antarctica:

The interior of the continent: This is the extremely cold area of Antarctica.

The coastal areas: These areas have milder temperatures and much higher precipitation rates.

The Antarctic Peninsula: This is the region which has a warmer and also wetter climate; above freezing temperatures are common in the summer months.

During the summer months temperatures in the Antarctic Peninsula range between -2°C - +5 °C. In the Ross Sea it can get significantly colder with temperatures down to -20°C.

The Aurora Borealis in Arctic

The best time to see the Aurora Borealis is between October and February. In this time, it is guaranteed dark at night when the chance of seeing the northern lights is greatest. Seeing the Northern lights also depends on the weather. During cloudy nights the lights cannot be seen.

Furthermore, not many people know that central Greenland is located at exactly the right latitude for seeing the Aurora Borealis. The fairly long periods of darkness in September make our Greenland expeditions an ideal opportunity to admire this unbelievable phenomenon.

About the Polar bears

There is a chance you will see polar bears in places like Svalbard and Franz Josef Land, but the odds that you will see one during a landing or onshore activity is highly unlikely – and we work hard to keep it that way. Most people who visit the Arctic want to see a polar bear, but it is our top priority to ensure that all wildlife sightings are safe both for our passengers and the wildlife.

Our experienced staff will use their knowledge to find polar bears, ultimately it is in the hands of nature. Our Svalbard and Franz Josef Land voyages offer the best chance of sightings, but we rarely encounter bears in Greenland.

In a few of our Arctic areas of operation, polar bears sightings are fairly common. Though we can obviously never guarantee we’ll see polar bears, these areas are great places to look for them. Our captains, crews, and guides (with help from our passengers) keep a close lookout for polar bears at all of our landing sites, and if we see any, we do not go to shore.

If no bears are spotted, however, our guides will scout the area from our Zodiac boats to make sure no polar bears have escaped notice. Only then will we attempt a landing. During landings in polar bear country, our guides carry powerful rifles in case of the unlikely event of an encounter with a bear that has gone undetected. If we spot a bear, we immediately evacuate and return to the ship.

Photography Workshops

There is no extra charge for participating in our photography workshops, but please book your spot well in advance - preferably three months prior to your departure. The photographers are in high demand, so we need to recruit them early.

You have to bring your own camera gear. Choices in photography equipment are largely matters of personal preference, so there’s no way we can accommodate everyone. You can bring more than just a basic camera if you choose, but keep in mind you may have to carry your gear over long distances.

Embarkation & Disembarkation

Standard embarkation time is between 4PM and 5 PM, but on some voyages we have different embarkation times. Standard disembarkation time is around 9AM, after breakfast, but on some voyages we have different disembarkation times.

Other information

  • Min. Age: Children must be at least three years old
  • Dive Equipment Rental:Not available, must bring your own
  • Dive insurance:Mandatory requirement for all divers
  • Wi-Fi Internet :Available with additional cost
  • Laundry Service:Available with additional cost
  • Massage Service:Not available at the moment
  • Payment on board:Cash (EUR/USD) or credit card (Visa, Master)
  • Crew Number:72, include 4 dive guides for up to 24 divers/trip.

Cabins & prices

Name Price
Quad $4,000.00
Triple $5,000.00
Twin $5,600.00
Twin window $6,050.00
Twin Deluxe $6,400.00
Superior $7,300.00
Junior Suite $7,750.00
Grand Suite $9,000.00


  • Transfers from airport and/or hotel to the yacht
  • Marine park fees & Port fees
  • VAT and local taxes
  • Full-board meal plan (including snacks)
  • Complimentary beverages (water, tea, coffee)
  • Naturalist guide
  • Land excursions and activities throughout the trip
  • Boat accident insurance
  • Cabin towels and complimentary toiletries
  • Cabin cleaning service

Not included

  • Domestic flights in destination country
  • Fuel surcharge
  • Alcoholic beverage
  • Soft drinks
  • Diving activity (incl. tanks, weights, weight belts)
  • Dive guide service
  • Use of Kayaks or/and SUPs
  • Dive insurance (mandatory requirement)
  • Travel insurance (trip cancellation insurance)
  • Wi-Fi
  • Crew gratuity


Destinations Arctic, Antarctica
Facilities Watersport equipment, Camera Station, Wi-Fi, Laundry, Heli-deck
Languages spoken English, French, German


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20/03/2024 to 20/04/2024


Janssonius is a deluxe standard Polar vessel runs by Oceanwide Expeditions, it offering both scuba diving and Polar cruise explorations in the Antartica and Arctic, it can accommodate up to 170 guests.

29/03/2024 to 20/04/2024


Janssonius is a deluxe standard Polar vessel runs by Oceanwide Expeditions, it offering both scuba diving and Polar cruise explorations in the Antartica and Arctic, it can accommodate up to 170 guests.

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