The zookeepers were totally stoked to celebrate Finn turning 4! 🏄‍♂️ It may be winter, but this beach-themed birthday party made us want to catch a wave. 🌊 Watch as all three sea otters enjoy the specially made ice treats filled with craveable crustaceans that help encourage natural behaviors. How rad is that? 🦦 Come visit these totally tubular sea otters today! #DetroitZoo #SeaOtter #AnimalBirthday #Enrichment #AnimalWelfare