What is included in the cruise fare?

Standard cruise fares include your cabin, onboard meals at main dining venues, most non-specialty entertainment, use of pools and common facilities, and transport between ports of call. Gratuities, specialty dining, alcoholic drinks, shore excursions and onboard spa services are typically billed separately.

How far in advance should I book this cruise?

For popular sailings, booking 6–12 months ahead typically gives the best cabin selection and fares. Last-minute discounts can appear 30–60 days before departure when the cruise line wants to fill remaining cabins on Seven Seas Mariner.

What documents do I need to board?

Most international itineraries require a passport valid for at least six months beyond your return date. Closed-loop sailings that depart and return to the same U.S. port from Buenos Aires may accept a government-issued photo ID plus a certified birth certificate for U.S. citizens — always verify with the cruise line.

Can I change or cancel my booking?

Change and cancellation policies depend on Regent Seven Seas Cruises's fare type and how close you are to departure. Refundable deposits typically allow changes up to the final-payment date without penalty; closer to sailing, cancellation fees scale up. Review the specific fare rules before booking.

What is a 18-night cruise like?

A 18-night cruise balances relaxing sea days with active port days. You can expect a mix of onboard programming — dining, entertainment, spa and fitness — and multiple shore excursions from Seven Seas Mariner. Pack for both formal nights and casual deck days.

Seven Seas Mariner 18-night Antarctic Encounter from Buenos Aires, Feb 20, 2027

Regent Seven Seas Cruises · Seven Seas Mariner · Feb 20, 2027 – Mar 10, 2027

Visit Buenos Aires, Port Stanley, Elephant Island , Admiralty Bay, Drake Passage and 6 more ports

Departure Buenos Aires

Return Lima (Callao)

Duration 18 Nights

From $14799 pp

Itinerary

Day 1

Buenos Aires Arrives 12:00 AM · Departs 5:00 PM
Day 2

At Sea Arrives 12:00 AM · Departs 12:00 AM
Day 3

At Sea Arrives 12:00 AM · Departs 12:00 AM
Day 4

Port Stanley Arrives 1:00 PM · Departs 8:00 PM
Day 5

At Sea Arrives 12:00 AM · Departs 12:00 AM
Day 6

Elephant Island Arrives 12:00 PM · Departs 3:00 PM
Day 7

Admiralty Bay Arrives 9:00 AM · Departs 3:00 PM
Day 8

Drake Passage Arrives 12:00 AM · Departs 12:00 AM
Day 9

Ushuaia Arrives 7:00 AM · Departs 4:00 PM
Day 10

Punta Arenas, Chile Arrives 10:00 AM · Departs 5:00 PM
Day 11

Cruising the Chilean Fjords Arrives 12:00 AM · Departs 12:00 AM
Day 12

Cruising the Chilean Fjords Arrives 12:00 AM · Departs 12:00 AM
Day 13

Puerto Montt Arrives 10:00 AM · Departs 6:00 PM
Day 14

At Sea Arrives 12:00 AM · Departs 12:00 AM
Day 15

Santiago (San Antonio), Chile Arrives 7:00 AM · Departs 3:00 PM
Day 16

At Sea Arrives 12:00 AM · Departs 12:00 AM
Day 17

At Sea Arrives 12:00 AM · Departs 12:00 AM
Day 18

Lima (Callao) Arrives 6:00 PM · Departs 12:00 AM
Day 19

Lima (Callao) Arrives 12:00 AM · Departs 12:00 AM

Cabin Prices

Prices as of 2026-10-20.

Prices per person, based on double occupancy in USD.

Suite $14799

Ports of Call

Buenos Aires
Port Stanley
Elephant Island
Admiralty Bay
Drake Passage
Ushuaia
Punta Arenas, Chile
Cruising the Chilean Fjords
Puerto Montt
Santiago (San Antonio), Chile
Lima (Callao)

About This Cruise

18-night Regent Seven Seas Cruises Seven Seas Mariner cruise from Buenos Aires to Port Stanley, Elephant Island , Admiralty Bay and Drake Passage…

Cruise Line Regent Seven Seas Cruises

Ship Seven Seas Mariner

Frequently asked questions

What is included in the cruise fare?: Standard cruise fares include your cabin, onboard meals at main dining venues, most non-specialty entertainment, use of pools and common facilities, and transport between ports of call. Gratuities, specialty dining, alcoholic drinks, shore excursions and onboard spa services are typically billed separately.
How far in advance should I book this cruise?: For popular sailings, booking 6–12 months ahead typically gives the best cabin selection and fares. Last-minute discounts can appear 30–60 days before departure when the cruise line wants to fill remaining cabins on Seven Seas Mariner.
What documents do I need to board?: Most international itineraries require a passport valid for at least six months beyond your return date. Closed-loop sailings that depart and return to the same U.S. port from Buenos Aires may accept a government-issued photo ID plus a certified birth certificate for U.S. citizens — always verify with the cruise line.
Can I change or cancel my booking?: Change and cancellation policies depend on Regent Seven Seas Cruises's fare type and how close you are to departure. Refundable deposits typically allow changes up to the final-payment date without penalty; closer to sailing, cancellation fees scale up. Review the specific fare rules before booking.
What is a 18-night cruise like?: A 18-night cruise balances relaxing sea days with active port days. You can expect a mix of onboard programming — dining, entertainment, spa and fitness — and multiple shore excursions from Seven Seas Mariner. Pack for both formal nights and casual deck days.