Sardinia or Corsica in late November ?

[portinfer]

Hey all - the Morocco idea is on ice for when there is more time and money...

But I was thinking of going with my brother to either Sardinia or Corsica in late November.

Anyone got any experience in these places ?

Depths ? Sea temp ? Air temp ?

Likely species ?

I guess we can get a cheap flight from London and go for 7 to 10 days.

Probably looking to do a bit of freediving and a bit of spearing too and the odd bit of wandering too. Planning on staying somewhere cheap and not looking for nightlife - anyone tried the campsites in either place ? What are costs like for food/accomodation/travel ?

Is mid/late November a good time for spearfishing in that area ?

Cheers
Ed