From the pattern:
Ruana is knit in 2 rectangles, then joined at center Back. Stitches of each piece may be placed on holders and joined using 3-Needle Bind Off (see Special Techniques), or may be bound off and sewn together at center Back. Ties may be worked as I-Cord or as crochet chains (see Special Techniques).

Waves Pattern chart is provided.

Note: Lace fabric is very flexible; piece may be blocked to desired size, but bear in mind that piece may be narrower if blocked longer, shorter if blocked wider.

NaturallyCaron Spa patterns can be made with Caron Simply Soft Light

NaturallyCaron patterns are now available at Yarnspirations