You are looking for a traditional small clip lock box in a camo bag, in a part of the forest we hadn't visited before. This may get nettley in summer, though there is probably a way round the nettles.
Placed with kind permission of Welwyn Hatfield Council
This is a large wood extending to 37 hectares, regenerating naturally following gravel extraction in the 20th century. In mediaeval times it was wood pasture common where local people grazed animals, gathered fuel and fed their pigs on acorns. There is a car park on Heath Road, an easy access trail close by and a longer perimeter trail for horse-riders and cyclists. the terrain in mardley Heath is really interesting, loads of muddy banks and gullies which the kids love. See if you can find the "sky tree" where the soil around the roots has eroded making the tree look like it's growing above ground (in the sky). If you're lucky you will find frogs and if really lucky newts in the ponds around the north pit area for more info goto: http://www.hertslink.org/cms/content/15488274/16532555/mardleyheath.pdf