Meet Steve Blacksmith from Halifax Scientific Society and Graham Haigh from Cromwell Bottom Wildlife Group in Cromwell Bottom car park (Behind Cromwell House, off the A6025 Elland-Brighouse road HD6 2RG – look out for the brown road sign) at 10.30. Come along to help survey the butterflies and learn about many beautiful species of grasses that are to be found at this time of year when there are in flower. Easy walking, great for families, picnic (possibly on damp ground – bring something to sit on!), walk covers about 2.5 miles in 3 hours