I have just finished making 6ft of canals, 14 woodland bases, and a girder bridge for my river sections.
The woodland bases each have three magnetized trees (made previously for sitting on the banks of my river sections), some wooden fencing, a fallen tree, and a few bushes to give the impression of a wooded area but with plenty of room for figure placement with the removal of the magnet trees.
28mm figures for scale.
With the canal sections, I was inspired by Richard Clarke's 2018 Crisis build and more recently, Alan Shewood and Joe Bilton's superb terrain-making skills of a canal.
Both the canal bridges and the barges are MDF kits from Sarissa Precision.
28mm figures for scale.