The couple who were attacked in the Caribbean were attacked while their boat was moored off the Vieux Fort coast where they had been staying as part of the round-the-world voyage, celebrating Mrs Pratt's 60th birthday.
The couple left Lowestoft in June, navigating the English coastline before heading to the Algarve and on to the Caribbean.
Writing on her LinkedIn profile before she left, Mrs Pratt said: "Off travelling! The plan is to be in the Caribbean for my 60th birthday in January 2014... all a bit of a leap into the unknown. Please stay in touch - I plan to be an assiduous correspondent!"
The couple lived in the village of Moreton Morrell before embarking on their adventure.
More top news
The Prime Minister will seek fresh concessions from the EU after winning a confidence vote by 200-117
Chester, from East Lothian, was more than 50% above his ideal weight at 7.6kg before slimming to 6.3kg over six months.
Both dogs shed 25% of their body weight to share the crown in an annual competition by vet charity PDSA.