SUMMARY: Milly-Molly-Mandy, Aunty and Billy Blunt take a day trip to the seaside to meet little-friend-Susan and her family.
Poverty rears its ugly head again; Milly-Molly-Mandy's bathing dress is cut down (quite a lot, one assumes) from one of her mother's. Billy Blunt's (borrowed) "swimming-suit" includes upper body covering.