Buenos Aires
One of the places included in this itinerary.
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18-night South America cruise from Buenos Aires on Seven Seas Mariner
The Colossal Coastlines is a 18-night South America cruise aboard Seven Seas Mariner, operated by Regent Seven Seas Cruises. Departing Buenos Aires on February 2, 2027, the voyage visits 9 ports including Puerto Madryn, Punta Arenas, Chile, Ushuaia, Argentina. Fares start from $15,899 per person.
- Length
- 18 nights
- Departs
- Feb 2, 2027
- Returns
- Feb 20, 2027
- Ports of call
- 9
- Days at sea
- 8
Voyage code MAR270202
18 nights · South America
Why this route stands out
A closer look at the journey
Price tracking
Today’s fare, in context
Price history
Cheaper than 59%30 days
Current prices
Per person · 2 guests · incl. taxes & fees
Inside
Not available
Oceanview
Not available
Balcony
Not available
Suite
from $15,899
$883 / night
Fare rows
Deluxe Veranda Suite
Cabin grade
from $15,899
$883 / night
per person · incl. taxes & fees
Concierge Suite
Cabin grade
from $16,159
$897 / night
per person · incl. taxes & fees
Concierge Suite
Cabin grade
from $16,359
$908 / night
per person · incl. taxes & fees
Penthouse Suite
Cabin grade
from $16,859
$936 / night
per person · incl. taxes & fees
Penthouse Suite
Cabin grade
from $16,959
$942 / night
per person · incl. taxes & fees
Penthouse Suite
Cabin grade
from $17,059
$947 / night
per person · incl. taxes & fees
Horizon Suite
Cabin grade
from $17,459
$969 / night
per person · incl. taxes & fees
Deluxe Veranda Suite
Cabin grade
from $19,599
$1,088 / night
per person · incl. taxes & fees
Concierge Suite
Cabin grade
from $19,999
$1,111 / night
per person · incl. taxes & fees
Concierge Suite
Cabin grade
from $20,199
$1,122 / night
per person · incl. taxes & fees
Penthouse Suite
Cabin grade
from $20,699
$1,149 / night
per person · incl. taxes & fees
Penthouse Suite
Cabin grade
from $20,799
$1,155 / night
per person · incl. taxes & fees
Penthouse Suite
Cabin grade
from $20,899
$1,161 / night
per person · incl. taxes & fees
Horizon Suite
Cabin grade
from $21,299
$1,183 / night
per person · incl. taxes & fees
Seven Seas Suite (Forward)
Cabin grade
from $23,659
$1,314 / night
per person · incl. taxes & fees
Seven Seas Suite (Forward)
Cabin grade
from $27,499
$1,527 / night
per person · incl. taxes & fees
Mariner Suite
Cabin grade
from $29,959
$1,664 / night
per person · incl. taxes & fees
Grand Suite
Cabin grade
from $30,159
$1,675 / night
per person · incl. taxes & fees
Mariner Suite
Cabin grade
from $33,799
$1,877 / night
per person · incl. taxes & fees
Grand Suite
Cabin grade
from $33,999
$1,888 / night
per person · incl. taxes & fees
Prices verified Sep 9, 2026
This sailing
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The journey
18 nights, in order
Buenos Aires
Explore Buenos AiresDay by day
The full itinerary
Your ship
Seven Seas Mariner
Attention to detail distinguishes Regent Seven Sea Cruises™ and the exceptional suites on Seven Seas Mariner®. With our all-inclusive fares, every guest enjoys spacious closets, well-appointed bathrooms and a private balcony with views of the shimmering sea. Soothing colors accented by appealing patterns and textures dominate the interiors of Seven Seas Mariner®. The common spaces offer everything from wide-open views on the upper deck to intimate tables for bridge in the Card Room.
5★
48,075 GT
700 Passengers
Built 2001
Seven Seas Mariner
Deck plans
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