The Nai Lert Park annual fair is taking a more fun-filled approach this year, and calling itself the Flower Carnival.

To advertise the event organisers paraded naked models covered with orchids.

The carnival is between August 22 and 24.

The hotel will turn its four-and-a-half rai of private park into a permanent orchid garden, featuring more than 250 species.

Orchid expert Rapee Sagarik is setting up the garden, worth around Bt40 million.

The brainchild of Thanphuying Lursakdi Sampatisiri, an ardent plant and flower lover and honorary hotel chairperson, says the event has grown from "just a flower show" into a public and social affair. It raises Bt38 million for charities.

This year the money is going to the Kidney Foundation of Thailand.

Participants this year include leading flower arrangers and top business people.

Social celebrity and florist Sakul Intakul, party organiser Tinakorn Asvarak, JSL boss Lawan Kanchat, Siam Paragon executive Supaluck Umpujh, Central's Yuwadee Bicharnchit, designer Polpat Asavaprapa and writer Chitra Kornantakiat are all taking part.

Other activities include flower-arrangement demonstrations, celebrity fashion shows, a superstar concert, an afternoon tea concert with Jennifer Kim and friends, cooking demonstrations, a photography even, a shop-till-you-drop bazaar and a plant market.

There will also be a special demonstration of sogetsu floral arrangements by Madame Kako of Japan.