Larnach Castle Garden - A Garden in the South Seas. Explore a 125 year old garden of strong design & magnificent vistas. An important collection of NZ & other temperate Southern Hemisphere plants complements the seasonal floral displays. Since 1967 the owner, Margaret Barker, has replanted and revitalised the garden. This has been achieved with great sensitivity to the estates history and overwhelming ambiance. Recently selected as a garden of International Significance.