Wednesday, May 19, 1999 Published at 17:40 GMT 18:40 UK
40,000 Diana tickets unsold
The park includes a museum and the lake where Diana is buried
One quarter of the tickets to a memorial park for Diana, Princess of Wales are still available, six weeks before the gates re-open to the public.
No day has yet sold out for this year's season at Althorp Park, near Northampton, where the princess is buried on an island in a lake.
She said ticket sales had been "understandably" slower than last year, when the memorial park was first opened to the public.
The park, which includes a museum dedicated to Diana's memory, will open on 1 July and close on 30 August, the day before the second anniversary of her death.
About 112,000 of the 152,000 available tickets had been sold since sales began in January, said the spokeswoman.
Christening gown on show
A borrowed christening gown worn by the princess is to go on display at the Althorp museum this summer, after staff there tracked it down.
The early 19th Century cotton dress was traced to Norwich, where it was being stored with other antique clothes by Norfolk County Council's museums service.
Diana wore the embroidered gown for her christening at Sandringham Church in August 1961, after her mother decided she liked it better than the Spencer family gown.
A spokeswoman said: "It will be a very exciting new addition to our museum."