Fecci's is the seaside chippy you want it to be, proper battered fish, chips that aren't apologetic about being chips, and a spot on the esplanade with North Beach stretching out below. The Fecci family have been feeding Tenby since the early twentieth century.
Eat outside on the esplanade wall with the sea breeze, or take the box down to the beach. No agenda required, this is the whole point of a coastal town.