Saturday 3 November (Geoconservation Day): Wren's Nest. Directed by the Reserve wardens. Meet at the Wardens' house on the Mons Hill College ground at 10.30. The day will involve scrub clearance followed by a fossil hunt a little walk from the Wardens' base. Bring gloves, stout footwear and packed lunch. Wardens will provide tools, hard hats if necessary and a hot drink. Finish around 2.30.