Another great design that incorporates both knitting and crocheting by Yumiko Alexander.
This one is called Sand Prints and is most interesting -- I especially like the top of the hat (see third photo below).
It is rated as fine for Advanced Beginner or Intermediate and uses about 388 yards of worsted weight yarn for the scarf and 220 yards for the hat.
The scarf's final dimensions are about 6 1/2 " (16.5cm) by 67" (170cm) long and the hat is about 21 1/4" (54cm) circumference x 9" (23cm) tall.
A great little set.