Cruise lines are always seeking to attract younger passengers but 'Swannies', as the regulars on Swan Hellenic's Minerva like to call themselves, may be surprised by the number of twentysomething faces on the 15-day 'Islands in the Sun' itinerary in August.

Swan Hellenic has designated this as a 'young person's cruise' and is offering half-price fares to anyone under 26 travelling with a full fare-paying passenger. The cruise, which departs from Naples, has a marine biology theme and the ports of call include Pompeii, Ischia, Rhodes and Lindos. Prices start at £2,910 for older people (£1,455 for the younger companion) though it can be split into two eight-day cruises departing on 16 and 23 August with prices from £1,620 (£810).

There is no disco on the Minerva but this might be just the trip to take with mother. Reservations from 020 7800 2200.