More than 200,000 tourists visited Guernsey last year, an increase of 15,000 on previous figures despite the global recession.
Chris Elliott, the island's director of marketing and tourism, said he put the rise down to Visit Guernsey reacting quickly to the changing situation.
He said the strength of the euro had made people look closer to home.
"We emphasised the value for money message... that seems to have struck a very responsive chord," he said.
He said: "We had big ads in the national newspapers, which had not particularly subtle straplines, it said things like 'Guernsey, near the coast of France, but not the cost of France' and the most successful one of all basically said 'Guernsey exchange rate £1 equals £1'."