Wednesday, May 10, and Thursday, May 11. Conservation charity BTCV would like volunteers to join it on a trip to Happy Valley Park to construct horse barriers in Pond Field to keep animals on designated routes and stop them from causing damage to grassland.

A minibus will pick up outside Croydon Crown Court in Altyre Road at 9.30am, returning at 4.30pm.

Tools and training are provided but bring old clothes, appropriate footwear, waterproofs and a packed lunch.

Call 020 8726 0974 for more information.