So, if you like the idea of spending a couple of weeks on yacht around Corsica, you'll get there by plane (Calvi, Ayacco) via Nice. Obviously you would need to arrange all that with a captain via telephone, so he would be able to meet you.
You can find a captain in the French nautical/marine/yacht press, classified. Call him discuss prices (around $1000 per person for two week, food included, for a yacht with two couples). French language helps. Then send him a check with 20-25% of down-payment.

• Detailed interactive map with lots of information
• Simply Corsica - Map and tips on Corsica's destinations
• Lots of nice photos of Corsica's inland
• Invitation to Travel. Vacation planner: activities, hotels
• Hotels and Travel in Corsica, France
• Guide-portal
• Texts on Corsica's trips
• Corsica-on-line
• Corsica on the Internet (guide)
• Corsica's flag
• Napoleon and Corsica