Neapolis in the New Testament
Neapolis was in Macedonia, the port of Philippi, ten miles off, where first in Europe Paul landed (Acts 16:11). The Turkish Kavalla. The mountains, including Mount Symbolum, form a noble background. Among the remains are those of Roman work in the substructions of a massive aqueduct, built on two tiers of arches, and carrying water from twelve miles' distance along the sides of Symbolum over the valley between the promontory and the mainland into Kavalla. The harbour has good anchorage. Dion Cassius (Hist. Rom. 47:35) mentions Neapolis as opposite Thasos, which is the position of Kavalla.
International Standard Bible Encyclopedia, which is in the public domain (with minor edits).