I will be down in Coz the same week in Feb.pilot fish:Sounds like a good idea. Going 12th to 17th of Feb and staying at Hotel Cozumel. Will be divng with Dive Paradise .It's what I did 2 years ago too. I just like the great diving there. SIT?
I went last year around the same time and I wore a 3/2 shorty.
I got a little chilled but was Quickly cured by a 1mm tunic worn under my shorty. I only got cold on towards the 2nd and 3rd dive when my core organs started to cool a bit. The Tunic really made a big difference.
I will be at the Casa Del Mar. Stayed there last year. Wasn't the best but it was worth the money.