Lee Valley Regional Park, Gunpowder Park car park, Sewardstone Road, Waltham Abbey, Essex, EN9 3GP
Enter Gunpowder Park entrance via the entrance to the left of the Field Station. Proceed on the surfaced pathway, continuing up and over the hill. At the T-junction turn left, proceeding along the path, alongside the bridleway. Turn left at the next junction and then right towards the wet woodland area, Osier Marsh. Continue along the boardwalk through the wet woodland, passing a bird hide and seasonal pond on your right. At the end of boardwalk bear to the left and continue along the pathway. Turn right at the T-junction and follow the path, passing the Hazel, Blackthorn and Elderberry shrubs. Pass through the bollards on the perimeter of the site and turn left onto Sewardstone Road. Follow the pavement up and over the hill. Turn left through a small metal gate, re-entering Gunpowder Park. Follow the hard surfaced path, which leads back to the Field Station.
Gunpowder Park Field Station, Osier Marsh Boardwalk and bird hides. Two viewpoints are a short detour from the route.
Terrain: Surfaced pathways including a wooden boardwalk.