The week will involve close encounters (some 33 species can be found, including whale sharks) as well as rays in their natural habitat, says blue o two, while reminding us that the sightings cannot be guaranteed!

The diving will be accompanied by seminars on biology and behaviour of sharks.

The trip starts on 20 August and costs £4043pp, which includes airport transfers, full-board accommodation (two sharing), diving and at least two land visits. International flights are extra.

For divers looking to make a career out of their pastime, meanwhile, blue o two has announced a Cruise Director Internship Programme (CDIP) in Indonesia, Maldives, NG, Palau, the Philippines, Red Sea, Solomon Islands or Truk Lagoon.

The 90-day liveaboard internships for suitable qualified divemasters or equivalent include full-board, training and practical experience and cost US $3000.

www.blueotwo.com