 It was re-awarded in 1999 and in the same year, a rare species of white-clawed crayfish was discovered in Hatherton Lake.From 1951 to 2008 the Arboretum hosted the Walsall Illuminations each autumn for six weeks.The first show was held in 1951 by the Festival Committee, although illuminations have taken place at the park since 1875 when candles were placed in coloured jars.