If you have 24 hours to spend in Fenland, here are some suggestions:
It's a Georgian townhouse with a beautiful walled garden. It takes about 1-2 hours to visit.
You can enjoy the scenery and possibly see some swans or ducks. It's a nice and relaxing walk that will take about an hour.
The castle dates back to the 11th century and has a museum and art gallery inside. It will take about 1-2 hours to visit.
It's a small museum with a collection of aircraft, aviation memorabilia, and information about local aviation history. It takes about 1-2 hours to visit.
They serve amazing Fenland dishes like parsnip and potato mash with local sausages. It will take about an hour to eat.
You can browse local crafts, meats, and vegetables. It's open every Tuesday, Thursday, and Saturday until mid-afternoon. It will take about 1-2 hours to explore.