Blondepuff do you mean a few days in a beach hut? If so I have the email details of a guy in Agonda who does really lovely Huts right on the Beach. If you want his contact details PM me.

When we was there at Xmas last year People who had gone down to spend a few days in Palolem actually came back early as they said it was far too busy.

I can recommend Cavelossim its a lovely location with beautiful beaches that you can walk ( or hire a bike) along for miles, some parts you may not see a soul

Gaffinos or Saodomingos are 2 lovely B&B's in the Village.

Edited as I didn't answer your initial Question~~ I would say book before you go, although even on Xmas day we know People were walking in from the streets and if possible were being accommodated ......its Goa after all

Thanks Elliebee, I'll pmyou.