I need help finding out what this old apple (i think) game is?

I was in 1st-3rd grade so i believe that was '92-95. We had a computer we could play games on in our schools library. This was a long time ago so my memories may be slightly incorrect. I recall you were a hiker or mountain climber of some sorts and you had a net in which you caught elves in and they would give you a hint or something. Other then that I remember going up a ladder and needing a key to get the treasure on the other side. That is all I can remember. Anyone have any ideas?