Variations on a Theme border rnd 1

OK here we go! Border.
Rnd 1: Join with sl st in any corner, ch 3 (counts as dc), (dc, ch 2, 2 dc) in same corner, * (ch 1, 2 dc in next ch-sp) to next corner, (2 dc, ch 2, 2 dc) in corner; repeat from * around ending last repeat at first corner, join with sl st in top of ch 3. Fasten off.