Somewhere in a shipping yard in 2008, 102 containers arrived in Dunedin. Inside was an entire Ming Dynasty garden: timber, granite and roof tiles, ready to be reassembled without a single nail. That garden is Lan Yuan, whose name translates as "a garden of distant longing." It is as close as the Southern Hemisphere gets to an authentic late Ming scholar's retreat.

Shanghai craftsmen built it twice. First at home, on a plot identical to its Dunedin site. Then again here, after the pieces made their 13,000 kilometre journey. The garden honours the Cantonese immigrants who arrived during Otago's 1860s gold rush and stayed to shape the city. It also embodies Dunedin's sister-city bond with Shanghai.

VoiceMap's self-guided walking tours pass Lan Yuan between the old bus hub and the Warehouse District. Along the way, it traces how waves of arrivals, by sea, rail, road and, in this case, shipping container, built modern Dunedin.