Let's be Avenue.

This walk took us around a place that not so long ago was labelled as the most heavily polluted site in Europe. It took £103 million to clean up this area and now contains housing, a country park and a nature reserve that is home to some great wildlife.

This is what it used to look like when it was a coking works.

During the clean up process.

And now.

Here is a list of what we saw on the day.