The best cruises for 2018

Go Greek in spring and autumn
The Greek islands sailing season gets longer this year as Celestyal Cruises introduces extra departures in March and November. The boutique line has added three and four-day Aegean voyages calling at islands including Mykonos, Patmos, Santorini, Heraklion, Samos and the Turkish resort of Kusadasi.
Details A three-night round-trip voyage from Athens departs on various dates from March 30 until November 9, with prices from £350, including drinks, selected excursions and gratuities. Flights cost extra (00 30 21 6 400 9999, celestyalcruises.uk)

Yoga and silent discos on the Seine
U by Uniworld promises to convert bright young things aged 21 to 45 to its vibrant style of river cruising. Its black, contemporary vessels have stylish interiors, with immersive experiences and an achingly…