They have used the C Grade Bassalt and planted Sir Walter Buffalo around the flagging, and used the bridge timbers for the seating.
If you would like to achieve this awesome look, they have used geofabric under the flagging and used C Grade Bassalt Flagging, Gold Aggregate and bridge timbers for the seating.
Surrounding the Fire Pit they have used the Sir Walter Buffalo. As an edging from the Sir Walter Buffalo and the Gold Aggregate they have used the 75mm LinkEdge.