© Licensed to London News Pictures. 25/04/2018. ASHRIDGE, UK.  Visitors walk on a pathway amongst the bluebells in bloom in Dockey Wood, Hertfordshire.   As the popular location experiences high numbers of visitors, the National Trust has imposed an entrance fee in recent years and, this year, has built barricades of twigs and branches to clearly demarcate pathways in order to protect the delicate flowers from being trampled.    Photo credit: Stephen Chung/LNP