The lead ship of the class, MSC Seaside, entered service in the Caribbean Sea in December 2017.

[1] A fourth cruise ship, the MSC Seascape was christened in New York on December 7, 2022.

[1] The two Seaside EVO ships will measure 170,412 GT, with a length of 339 metres (1,112 ft 2 in); an additional deck and modified cabins will give them a passenger capacity of 5,646.

[1] Seaside-class ships are powered by a diesel-electric genset system, with four Wärtsilä engines driving GE Marine electrical equipment.

[4] Upon delivery of MSC Seaside in November 2017, MSC Cruises announced that it signed an order from Fincantieri for two new vessels that were to be an evolution from the existing Seaside-class platform, a sub-class to be dubbed "Seaside EVO".