Garmin maps for Corfu

[ColinM50]

Going to Corfu for a week as of Sunday 26 Oct and thought about taking my Garmin Nuvi with me but it seems the European maps it came loaded with don't cover Corfu. Checked on Garmin's website and it's a separate card for Italy, Greece and Corfu that plugs in to the Nuvi but it costs £35.

Anybody know of a cheaper option or could lend me the card for a week?