See this image on Landscaping Rockhampton, Yeppoon, Emu Park Capricorn Coast: "balmoral" link block stairs.
Some retaining-wall blocks have locking mechanisms that allow them to be built…
20 Inspiring Tips for Building a DIY Retaining Wall - All you need are some cement blocks and the strength to stack them! These cement blocks will provide a nice finished look - Fresh Yard Ideas
face with galvanized metal for retaining wall
This Old House landscape contractor Roger Cook shows how to hide—and beautify—an ugly concrete-block retaining wall with a trellis.