"The picnic is this way"
I really don't know anything about treasure signs, so don't take that with the slightest seriousness. But it does look like a couple (bearded man with fur hat on left, woman in dress with pointy hat slightly behind on right) carrying something... Food, gifts?
Meanwhile, welcome to TreasureNet, and there are more helpful folks here that might shed some light to the meaning of this. A likely question would be "where is it?" (as close as you're comfortable with)