Married couple Cliff Walker and Angela Adkin from Nottingham fell in love with St Lucia when they were on a Caribbean cruise, and now, after discovering their pensions aren't performing as well as they'd like, they've decided to invest in a property there. Can Jasmine Harman find a place that will be a sound investment and also give them and their family an idyllic holiday home for years to come, all for their £120,000 budget?