Nature watching. Mammals - why not join an official trapping group to get a better look at the shrews - contact the Field Studies Council.
Getting there:
Lemsford is close to Welwyn Garden City. The entrance to the Lemsford reserve is on the west of the roundabout linking the B197 with the road to Lemsford village, and junction 5 of the A1M. No access from the motorway.
Bus service to nearby Lemsford Village (five minutes walk to reserve). Nearest train station - Welwyn Garden city (25 minutes walk to reserve).
Opening times:
Access is by permit only - turn up and ask for the key (advisable to ring in advance). Contact Herts Wildlife Trust for details - 01727 858901. Daylight hours.