This is the Stacked Shells Scarf, a match for the Stacked Shells Beanie I sent over to you a couple of weeks ago. It's such a beautiful set.
There are a lot of stitches involved so I've listed this as an Intermediate skill level. You'll find double crochet, single crochet, clusters, shells made of clusters and of course, those ridges made out of
front and back post double crochet.
Once I got to the back post double crochet, I felt that was the tipping point that put this into Intermediate.
It's really not super difficult. Just practice the stitches a little and you'll be well on your way.