Great Lakes Aquarium otters, Agate and Ore, turned eleven years old on Saturday. To celebrate their birthdays, the Great Lakes Aquarium held a day-long event, complete with games, shows, and an otter cake.

“My co-worker made them a cake this year that consisted of squid, scallops, and shrimp,” said Natalie Riemer, staff member at the Great Lakes Aquarium.  “It’s a big hit with them for sure. We spoil them a little bit each year on their birthday.”

You can visit Agate and Ore at the Great Lakes Aquarium daily from 10am to 6pm.