For the past three years, Cambs & Fens Group have conducted a public competition, whereby visitors are encouraged to estimate how many similar items are in a transparent jar.
In 2022, the contents were 1" wood screws, in 2023 it was bottle tops and in 2024 it was dog biscuits. This year's competition concluded in December and the winner, with a totally accurate estimate of 327 was Mark Rogers of Chatteris. He has been awarded £50. The competition gathered in for the Trust a useful amount that would probably not have been donated to the scheme.