Chester Zoo's river wall with railway sleepers

The UK’s number one Zoo, close to the historic city of Chester, is set in 110 acres of award-winning gardens. In this spectacular setting are over 7000 animals – more than 400 species of rare, exotic and endangered wildlife. There’s so much to do and see, with lots of great activities for all the family. With more than one million visitors every year, the Zoo is an all-year round favourite attraction for kids of all ages! Chester Zoo Says..

Lots of waterways at Chester Zoo, lined with railway sleepers slotted into RSJ's. The last picture is of the 'adventure play area' in the Lion enclosure. It would certainly be an adventure to play there!