Hi Jacquelyn, The slippery part would be something to really look at. Nothing is worse that slipping and sliding all over after getting out of the pool. I know that tiles are rated for their skid resistance. http://www.builddirect.com/Porcelain-Tile/Ceramic-Tile-Articles/Skid_Resistance_Scale_for_Tile_Flooring.aspx

Maybe check that rating on the ones you are interested in?

A good tile store should be able to offer you guidance on the tile specifications you will need to know. You could also consider speaking to a landscaper that can discuss stone options for the deck too. They can be stone tiles or actual flag stones... Just some additional ideas. I have heard that salt water pools can affect tiles (not sure if you have that) but just fyi.

yeah, i think natural and local stone is always a good option.