Educational series for four- to seven-year-old children with learning difficulties, offering teachers, parents and carers a range of approaches to develop language and communication skills. Justin and his friends Ryan, Cameron and Delise are having a lovely day at the park. They try out the rides, get lost in the maze and have a dragon boat race on the lake! Mr Tumble is trying to find a boat of his own to go on a sea adventure, but who will help him find one?