They say a trip to this part of the Caribbean usually costs from £1500pp for flights, transfers, seven nights' B&B and 10 dives, so claim £300 off by quoting "Dive Grenada with Ultimate Diving".

Continuing the discount theme, Ultimate has savings of £100pp at Cobalt Coast Dive Resort in Grand Cayman, though this offer is valid only for departures to the end of June. Quote "Spring Savings".

And away from the Caribbean, "free nights" are the deal at the Kurumba Maldives for stays between 1 August and 22 December, plus 10% extra off for bookings 50 days ahead of arrival.

Seven nights' B&B (two sharing) normally costs from £1999pp in September/October including flights, transfers and 10 dives. Magic words? "Dive Maldives with Ultimate Diving."