Fun, easy doily inspired by the ocean. Can make the doily in about 1.5-2 hours.

Size 3 thread (6.5″/17 cm doily):
30 yards/27 meters Main Color
12 yards/11 meters Contrasting Color
Size E/4 (3.5 mm) crochet hook

Size 5 crochet thread (5.5″/13 cm doily):
24 yards/22 meters Main Color
10 yards/9 meters Contrasting Color
Size D/3 (3.25) crochet hook

Size 10 crochet thread (3.5″/9 cm coasters):
18 yards/17 meters Main Color
7 yards/7 meters Contrasting Color
Size 7 (1.5 mm) steel crochet hook

Written with US terminology and abbreviations, UK conversion chart given.
Stitches and concepts used: chain, single crochet, double crochet, treble crochet, working in the round, changing colors