Pre-school character Poppy Cat will be appearing at the National Sea Life Centre in Birmingham from September 14th to 29th.
Parents and children will be able to enjoy reading sessions based on 'All Aboard' adventures, while they can also dance along to a 'Copy Poppy' routine, which encourages families to mimic the costume characters' movements including 'the swim' move in time with the theme tune.
In addition to this, Nick Jr will air underwater-themed Poppy Cat episodes every day during the event. There will also be underwater content at www.nickjr.co.uk, alongside Poppy Cat clips, games and activities.
The Sea Life promotion will also see the launch of a new parent and toddler midweek ticket, meaning an adult and child under five pays £12 to gain entry.
"We can't wait to welcome Poppy Cat to the National Sea Life Centre," said Jamie Turner, marketing manager at Sea Life. "There'll be lots of undersea adventures and with the new parent and toddler midweek ticket we really think that parents will be able to bring their little ones for even better value for money."
Michael Dee, director of content at Coolabi, added: "Poppy Cat enjoys underwater adventures in the television series, so this partnership with Sea Life provides a great opportunity to bring Poppy Cat's adventures to life off-air."