The incident happened at Happy Days Retro Vacations near Saxmundham, Suffolk, pictured here in 2016.
The blaze broke out at 4.40am on Sunday and did not spread beyond the caravan, Suffolk Police said.
The force said fire crews, the ambulance service and police attended the blaze and officers are supporting the woman’s next of kin.
Suffolk Fire and Rescue Service confirmed the fire took place at Wardspring Farm in Leiston Road.
Furniture
Lighting & Heating