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 Copenhagen 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 20-night cruise like?

A 20-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 20-night Copenhagen to Amsterdam (Ijmuiden from Copenhagen, Jun 10, 2027

Regent Seven Seas Cruises · Seven Seas Mariner · Jun 10, 2027 – Jun 30, 2027

Visit Copenhagen, Kiel, Ronne, Gdansk, Klaipeda and 12 more ports

Departure Copenhagen

Return Amsterdam

Duration 20 Nights

From $17549 pp

Itinerary

Day 1

Copenhagen Arrives 12:00 AM · Departs 5:00 PM
Day 2

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

Kiel Arrives 7:00 AM · Departs 7:00 PM
Day 4

Ronne Arrives 8:00 AM · Departs 5:00 PM
Day 5

Gdansk Arrives 8:00 AM · Departs 5:00 PM
Day 6

Klaipeda Arrives 7:00 AM · Departs 4:00 PM
Day 7

Riga Arrives 9:00 AM · Departs 4:00 PM
Day 8

Tallinn Arrives 10:00 AM · Departs 8:00 PM
Day 9

Kotka, Finland Arrives 7:00 AM · Departs 7:00 PM
Day 10

At Sea Arrives 12:00 AM · Departs 12:00 AM
Day 11

Stockholm Arrives 7:00 AM · Departs 5:00 PM
Day 12

Helsinki Arrives 11:00 AM · Departs 7:00 PM
Day 13

Visby Arrives 12:01 PM · Departs 8:00 PM
Day 14

Karlskrona Arrives 8:00 AM · Departs 6:00 PM
Day 15

Berlin (Warnemunde) Arrives 7:00 AM · Departs 9:00 PM
Day 16

Aarhus Arrives 10:00 AM · Departs 6:00 PM
Day 17

Aalborg, Denmark Arrives 7:00 AM · Departs 6:00 PM
Day 18

At Sea Arrives 12:00 AM · Departs 12:00 AM
Day 19

Hamburg Arrives 7:00 AM · Departs 11:00 PM
Day 20

At Sea Arrives 12:00 AM · Departs 12:00 AM
Day 21

Amsterdam Arrives 7:00 AM · Departs 12:00 AM

Cabin Prices

Prices as of 2026-10-19.

Prices per person, based on double occupancy in USD.

Suite $17549

Ports of Call

Copenhagen
Kiel
Ronne
Gdansk
Klaipeda
Riga
Tallinn
Kotka, Finland
Stockholm
Helsinki
Visby
Karlskrona
Berlin (Warnemunde)
Aarhus
Aalborg, Denmark
Hamburg
Amsterdam

About This Cruise

20-night Regent Seven Seas Cruises Seven Seas Mariner cruise from Copenhagen to Kiel, Ronne, Gdansk and Klaipeda Compare cabins from $17,549.

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 Copenhagen 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 20-night cruise like?: A 20-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.