The claim is based on a suggestion made by a district councillor. The provided web search results do not corroborate this specific suggestion regarding a pilot scheme for large-scale events at three public beaches. The evidence found is largely irrelevant to the claim's specifics.

The evidence confirms the existence of Manda Chan Wing-man as the Director of Leisure and Cultural Services and that she has been appointed to the role. However, none of the provided evidence sources contain the specific statement that she told a radio program on a Monday that the government would not set strict KPIs but would require responsible public use. The evidence is insufficient to confirm the specific details of her statement.

The evidence confirms that Hong Kong has beaches and mentions Tuen Mun, Ma Wan, and the Southern district in general contexts, but none of the provided sources confirm that the government *started inviting companies last week* to submit expressions of interest for developing Butterfly Beach, Tung Wan Beach, and Big Wave Bay.

The evidence confirms that Tuen Mun is a district in Hong Kong and that Hong Kong has various beaches. However, none of the provided sources contain the specific statement attributed to Tuen Mun district councillor Chung Kin-fung regarding the unique characteristics of the three beaches.

The web search results mention Butterfly Beach and its sunset views, but they do not contain a direct quote or statement from 'Chan' detailing that operators could use the sunset views, large barbecue area, and nearby park for large-scale events. The evidence is insufficient to confirm the full scope of this statement.