Katie Cassidy has been soaking up the sun in Miami for the holidays, and on Saturday, the actress was joined by her Arrow costar Emily Bett Rickards. The two caught up on the beach along with a few friends and hit the water together, both showing off their toned physiques in sexy bikinis. We last saw Emily, who also starred in the buzz-worthy romantic drama Brooklyn, splashing around in a two-piece during a trip to Hawaii in late November. She and Katie are likely making the most of their time off before the fourth season of their hit CW show picks up on Jan. 20. Keep reading to see these hot Arrow costars having a blast in Miami.