The site of Asine is located c. 8 km south-west of today’s city of Nauplio. The ancient remains here are spread out over the top and slopes of the 330 m long and 50 m tall acropolis cliff jutting out into the Argolis bay, as well as on the Barbouna hill just to the west. On both sides of the acropolis there are beaches, the western one providing an excellent harbour. Across from the acropolis the island of Romvi functions as a breakwater, protecting the landing.
A pilot underwater archaeological investigation took place in October 2021 in the waters outside Asine and Tolon. The project was a collaboration between the Ephorate of Underwater Antiquities, the Swedish Institute at Athens and Stockholm University, with participants also from the University of Gothenburg and the company Nordic Maritime Group. The project aimed to document the seabed with a so-called “sidescan sonar” (an advanced sonar) and to carry out dives at anomalies that were identified. The project also included an investigation of the seabed around the Kastraki promontory itself, outside the ancient settlement.