Colossal Coastlines
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. Fares start from $15,299 per person.
- Length
- 18 nights
- Departs
- Feb 2, 2027
- Returns
- Feb 20, 2027
- Ports of call
- 9
- Days at sea
- 8
from $15,299 pp
via CruiseDirect
Itinerary
Round-trip from Buenos Aires · approximate route · 1 stop without map data
Pricing
Lowest fare we've tracked over the observed 94-day span: $11,760 · range $11,760–$15,299
Lower than 71% of peers This extended sailing's from-price per night is lower than 71% of comparable sailings.
same cruise line and duration · from-price per night · as of Jun 26, 2026 · Broader cohort: same cruise line and duration, compared by from-price per night.
Current prices
Per person · 2 guests · incl. taxes & fees
Inside
Not available
Oceanview
Not available
Balcony
Not available
Suite
from $15,299
$849 / night
Fare rows
Deluxe Veranda Suite
Cabin grade
from $15,299
$849 / night
per person · incl. taxes
Concierge Suite
Cabin grade
from $15,559
$864 / night
per person · incl. taxes
Concierge Suite
Cabin grade
from $15,759
$875 / night
per person · incl. taxes
Penthouse Suite
Cabin grade
from $16,559
$919 / night
per person · incl. taxes
Penthouse Suite
Cabin grade
from $16,759
$931 / night
per person · incl. taxes
Penthouse Suite
Cabin grade
from $16,959
$942 / night
per person · incl. taxes
Horizon Suite
Cabin grade
from $17,459
$969 / night
per person · incl. taxes
Deluxe Veranda Suite
Cabin grade
from $18,999
$1,055 / night
per person · incl. taxes
Deluxe Veranda Suite
Cabin grade
from $18,999
$1,055 / night
per person · incl. taxes
Concierge Suite
Cabin grade
from $19,259
$1,069 / night
per person · incl. taxes
Concierge Suite
Cabin grade
from $19,399
$1,077 / night
per person · incl. taxes
Concierge Suite
Cabin grade
from $19,459
$1,081 / night
per person · incl. taxes
Concierge Suite
Cabin grade
from $19,599
$1,088 / night
per person · incl. taxes
Penthouse Suite
Cabin grade
from $20,259
$1,125 / night
per person · incl. taxes
Penthouse Suite
Cabin grade
from $20,399
$1,133 / night
per person · incl. taxes
Penthouse Suite
Cabin grade
from $20,459
$1,136 / night
per person · incl. taxes
Penthouse Suite
Cabin grade
from $20,599
$1,144 / night
per person · incl. taxes
Penthouse Suite
Cabin grade
from $20,659
$1,147 / night
per person · incl. taxes
Penthouse Suite
Cabin grade
from $20,799
$1,155 / night
per person · incl. taxes
Horizon Suite
Cabin grade
from $21,159
$1,175 / night
per person · incl. taxes
Horizon Suite
Cabin grade
from $21,299
$1,183 / night
per person · incl. taxes
Seven Seas Suite (Forward)
Cabin grade
from $23,659
$1,314 / night
per person · incl. taxes
Seven Seas Suite (Forward)
Cabin grade
from $27,359
$1,519 / night
per person · incl. taxes
Seven Seas Suite (Forward)
Cabin grade
from $27,499
$1,527 / night
per person · incl. taxes
Mariner Suite
Cabin grade
from $29,359
$1,631 / night
per person · incl. taxes
Grand Suite
Cabin grade
from $30,159
$1,675 / night
per person · incl. taxes
Mariner Suite
Cabin grade
from $33,059
$1,836 / night
per person · incl. taxes
Mariner Suite
Cabin grade
from $33,199
$1,844 / night
per person · incl. taxes
Grand Suite
Cabin grade
from $33,859
$1,881 / night
per person · incl. taxes
Grand Suite
Cabin grade
from $33,999
$1,888 / night
per person · incl. taxes
Signature Suite
Cabin grade
from $39,059
$2,169 / night
per person · incl. taxes
Signature Suite
Cabin grade
from $42,759
$2,375 / night
per person · incl. taxes
Signature Suite
Cabin grade
from $42,899
$2,383 / night
per person · incl. taxes
Prices verified Jun 26, 2026
Prices come from third-party data feeds via Regent Seven Seas Cruises and may differ from the cruise line's current fare. Confirm the final price before booking. How our pricing works
Price history
30 days
○ = last available date (sold out, or no longer listed).
Show all 14 cabin grades
Ship
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Fly-cruise options
from $15,299 pp
via CruiseDirect