Investigations were undertaken on two fronts.

1) At the centre of the island in correspondence with the area excavated by Bertolone in 1953-59. Here part of a dump directly overlying the wooden Neolithic structures was removed.

2) In order to move an ENEL electricity cable crossing the excavation a trench was dug which itself revealed levels and layers of 16th-15th century and medieval date, some still intact, documenting the island’s more recent occupation history. It was seen that the museum’s façade rested on a wall 1.10 m wide which probably relates to the ancient church of S. Biagio.
Other walls, probably Renaissance, were identified along and parallel with the west bank.

Two stratigraphic sequences were exposed: 1) datable to the Bronze T/F and some time during the Neolithic period 2) the second dated to the late Neolithic period and produced the absolute dating of a post of 3660-3530 BC cal. 1σ.

The line of the bank of the west coast which had emerged from the lake was plotted and levels were taken. The same type of stony feature as seen in 2005 and 2006 on the north and east banks was also seen here.