In this episode, CBeebies' very own motorcycle rider, Grace, shows off three amazing harbour machines! Grace helps out with some repairs in a mooring barge, shows us the world's largest boat lift and gets behind the wheel of a solar ferry!

In this episode, CBeebies' very own motorcycle rider, Grace, shows off three amazing machines that all go on water. Grace first goes for a sail in a trimaran, shows off an amazing personal mini submarine and then takes a RHIB boat for a drive around the harbour.