About 30 km east of Xanthi lie the well-known monasteries of Porto Lagos worth seeing on islands in the lagoon. These are among the "must see" attractions in the harbour village.
Lagos is a settlement in the Xanthi regional unit of Greece. It is part of the community Nea Kessani. It is situated on the bar separating Lake Vistonida from the Aegean Sea. In 1991, the settlement contained 371 inhabitants.
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Small tourist town with beautiful beaches and good harbour also for larger sailboats.
Peritheorion (Greek: Αναστασιούπολις - Περιθεώριον)
Byzantine archaeological site with a special atmosphere on Lake Vistoni, not far from Porto Lagos. Anastasiopolis was founded as a military and trading point on the Via Egnatia and probably got its name from Emperor Anastasius (491-518 AD) who expanded and rebuilt the previously existing Roman station Stabulo Diomedis. It was located on the north shore of Vistonis Lake (between Xanthi and Komotini) with a major port with access across the lake to the sea. Because of the silting down by the nearby river, the ruined city is now some distance from the lake. The city was destroyed in the early 13th century, but later rebuilt under Andronikos III (1328-1341). Most surviving remains date from this phase, although earlier phases are relatively easy to spot. The Via Egnatia had at that time significantly lost importance as a trade route in favor of maritime trade (especially by the northern Italian cities, such as Venice). As a result, many places along the Via Egnatia were deprived of their economic base and their decline was unstoppable. Since no archaeological dig was carried out, the city is in a completely overgrown state, but this has a special charm, so it is definitely worth a visit, if you are traveling in the area. It was on the north shore of Vistonis Lake (between Xanthi and Komotini) with a major port with access across the lake to the sea. The location on both the road and the harbour made the city one of the most important stations on the Via Egnatia. Because of the silting up by the nearby river, the ruined city is now some distance from the lake. This led to a great loss of meaning and economic decline. The city was destroyed in the early 13th century, but later rebuilt under Andronikos III (1328-1341). Most surviving remains date from this phase, although earlier phases are relatively easy to recognize. The Via Egnatia at that time had significantly lost importance as a trade route in favor of maritime trade (especially by the northern Italian cities, such as Venice). Thus, many places along the Via Egnatia were deprived of the economic basis and the decline unstoppable. Since no archaeological excavations have been carried out, the city is in a completely overgrown state, but this has a special charm, so it is definitely worth a visit. It is a very photogenic "lost place". From the entrance gate, follow the dirt road that leads as a circular path along most of the ruins. There are no signs explaining the ivy overgrown ruins. Especially this combination of interesting ruins and the wild nature make the visit worthwhile.
The remains of the former Aqueduct are still visible north of the city on the mountainside. This was the end of a 2.5 km long double wall, which ran from the fortress walls to the hills north. The free passage of the Egnatia was sealed off and thus controlled by the city. Within the double wall ran a line to supply the city with drinking water. You can still see the course in Goggle Earth today.
The bridge dates to 17th-18th century and despite heavy damage is still impressive and worth seeing, if you're traveling in the area.The worth seeing bridge over the river Kompsatos is a historic medieval stone arched bridge. The two large bridge arches have a width of 21.8 and 17 m. The height of the arch is 12 m. The western of the original three arches has collapsed.