Which species are you looking for? GALS are a few of the land snails banned from importation there due to possible risk of transmission of meningitis as they serve as vectors of transmission of several parasites and most land snails are facing extinction as they are heavily exploited for their shells, etc.
I;ve seen many this year on our walkway and around the yard. Rains about every other day here so it must be a good year for them. The shells are about 1/2 - 3/4" long, and tan in color.
Are you talking about regular old snails? I saw a couple a month ago cleaning our patio. The shell was 3/4 - 1" front to back I think. I can see if I can find anymore.