Hello, I have 700 tier points but only 1 BA flight credit. I'm based in the Caribbean (not an island served by BA) and don't have any upcoming travel plans to Europe. What is the best way to garner up 3 BA flights without crossing the pond? I see there is a flight from Nassau to Cayman, but it doesn't operate every day, so I don't think i can do it in a weekend. Any advice?

Thanks!