Other characters in the series
Mr. Ezikiel Shipham, who is nicknamed Mr. Ship owns the boatyard next to the guest house. The twins sometimes venture into the yard and act out an adventure. A half-finished boat lies in the yard throughout most of the series, and I'm not sure whether it was ever finished?
Mr. Fingham (known as Paddy Gingal) who owns a donkey called Fury which he uses to give rides to children down on the beach. Fury is looked after by Mr. Ship and kept in a stable at the boatyard. Robin and Rosie regularly visit Fury and feed him a carrot (or biscuits) and make a fuss of him.
Benn Gunn the pirate seagull is always hungry and has a crabby personality.
Cockleshell Bay Annual 1984
Paddy Gingal with Fury on the cover of a 1982 paperback