Not much to say, really.
It is a WHITE film canister on Helgeandsholmen, containing log book and (maybe) a small pen.
The name of the cache has nothing to do with the season, but instead of how it is hidden 
.
Please do not reveal the container on photos. Logs containing such photos will be deleted without further notice, as will logs that evidently shows that something else than the right container was found. Thanks.