France - Corsica or Sardinia?

We have an accommodation of either Ajaccio, Corsica or Olbia, Sardinia. Which island is better for snorkeling, beautiful beaches, clear and warm water, good and value food, and cultural? It would be for 2 weeks visit in August. We are from mid Atlantic of US. Thank you.

We have an accommodation of either Ajaccio, Corsica or Olbia, Sardinia. Which island is better for snorkeling, beautiful beaches, clear and warm water, good and value food, and cultural? It would be for 2 weeks visit in August. We are from mid Atlantic of US. Thank you.

I've been to both islands...CORSICA ^
However august can be a busy period there

Definitely Corsica !

2 weeks is plenty of time to visit the island. I you want to avoid the crowd of August (terrible traffic jam, full beaches etc...) do not spend to much time around Porto Vecchio or Bonifacio.

There are plenty of hidden beaches between Propriano and Figaro. Capu di Feno beach (the small one) behind Ajaccio is also a must in the morning and after 5 pm.

And try no to stick to the beaches : the mountain is also spectacular and there are places to swim there too.

Take some cash as it is difficult to pay with CC in Corsica.

I'm actually thinking of taking a week or so (9-10 days perhaps) in Corsica sometime later this year. Ideally I'd like to go in the off season - probably sometime in September or October.

However, I'm likely to be traveling alone (albeit with a few weighty books.) Will I get bored? I'm more interested in hanging out in picturesque towns, although I would like to do some hiking as well.

From what I can tell, it looks like the transport network is pretty good, so I wouldn't need to rent a car to travel around the island. Is that correct?

Any thoughts would be greatly appreciated... Thanks!

Base yourself in a nice place and make day excursions to discover some of the best spots. Or just chill out and enjoy it… Hotel Carré Noir is a great place to relax with some really stunning views!
http://www.hotelcarrenoir.com/

Corsica is very hilly, and road speeds tend to be very low compared to what you might be used to. However hiring a car will take you where you want to go and when!

I recommend visiting Sartène and Corte in the interior and also the prehistoric stones at Filatosa. But the beaches can be very good too .... just make sure you cream up or you might burn as there can be very little shade. (A couple of unprepared hours in May 2008 gave us 5 days of painful peeling sunburn!!)