We would like to record our gratitude to Yasushi Nishimura for encouragement in applying GPR in Greek archaeology. The late 1980s when he visited us in Greece was a critical time in that development. Stavros Papamarinopoulos’ NATO Science for Stability funded project (GR-Geotech), which had a GPR component, had just begun and survey was underway at ancient Mantineia. One of us, GT, having obtained a GPR at Thessaloniki University in 1992, made a productive visit to Yasushi Nishimura at Nara in 1996 (see photo). For RJ, it was sufficient to appreciate the technique’s potential from the graphics reproduced in his attractive colour booklets – in Japanese of course!