This will create 215 extra cabins, a new water park, a redesigned kids' area, plus additional features such as two new restaurants and a shopping area.
The cruise lines' four Lirica-class ships underwent a similar refurbished programme in 2015 as part of a €130m project.
The ship will also be installed with a selective catalytic reduction system and advanced wastewater treatment system. To help reduce emissions while in port, the ship will be fitted with shore power capability.
The Med, Northern Europe and Baltic Capitals
New two- to 14-night itineraries include Canary Islands & Madeira, the Mediterranean, Northern Europe and the Baltic Capitals departing Southampton May to October 2021.
Canary island highlights and Western Med
Twelve-night cruise options include calls to Gran Canaria, Tenerife and Lanzarote departing early May. A 14-night Western Mediterranean cruise in August will make stops in Palma de Mallorca and Monte Carlo.
Four different Norwegian Fjord itineraries include new calls to Denmark’s Skagen and Norway’s Rosendal, the world’s fourth largest fjord.
Three-night cruises depart Southampton with a day in Zeebrugge before returning to Southampton.
Baltic cruise options include a 12-night sailing that departs May 31 or a 14-night option that departs September 11 with two different itineraries. The 14-night itinerary includes an overnight stay in Stockholm, and a stop in Denmark’s Skagen. Both sailings include an overnight in St Petersburg and call to Oslo.
A 14-night Mediterranean cruise departs August 7 with calls to Palma de Mallorca and Monte Carlo.