To reach the waterfall and the hiking trail at Palea Kavala you have to drive from Kavala towards Drama, turn right after Amigdalonas towards Zigos. After the village Neo Zigos a street turns right to Palea Kavala. Approximately 300 m after the crossing, turn right into a dirt road (signposted) and follow the path past a sheep farm to a marble quarry. From there, a scenic hiking trail leads up the hill in the shady romantic mountain valley with tall trees to Palea Kavala. Even in summer it is pleasantly cool. After about 30 minutes you will come to a waterfall. In early summer, it is a nice place to rest and take a dip in the cold water. In high summer, the watercourse can dry out. After another 30 minutes walk along a stream you reach the village of Palea Kavala. It is an ideal place to relax after a walk in one of the restaurants. To get back to the starting point, either go back the same way, or along the road that runs parallel to the trail.
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High over Kavala a big white cross can be seen from everywhere in the town. It's a very nice place to go and you have a fantastic view over Kavala and the coast line, the Pangaion Mountain and the Delta of the river Nestos. Although you can reach the point only on mud roads and it's not signposted, it's definitively worth going there, especially in the late afternoon, when the sun is not burning hot anymore. Coming from Kavala center turn right opposite of Ag. Silas Monastery (at a bus station shortly before the motorway access towards Xanthi) and follow the paved road uphill 1½ km until you reach a little church and a hut with parking and grill place (turn left shortly before the paved road ends, signposted as FOK). From here you can make a nice 2½-km walk to the cross. It's also possible to go by car but the path is not paved and needs careful driving if you don't have a 4WD car.
A 10-minute walk will take you from the northern bypass of Kavala to the romantic chapel. The fantastic view is worth the climb. On foot from the center, it takes about 45 minutes to an hour to get to the Panteleimon Church. Behind the church there is a small and steep path that takes about 30 minutes to reach the White Cross on the top of the mountain. You should take water with you and avoid the midday heat for this somewhat strenuous walk.
The photogenic tower ruins are located in a forest above the city. The view from the top is well worth the visit, even more so than the tower itself. Built in 1308, the tower was the terminus of a 1.5 km long wall which controlled the road from Macedonia to Thrace and supplied the city with water. Starting on the north side of the city wall at the castle, the wall led to the opposite hills, interrupted only by the aqueduct.
The Monastery of Agios Silas is dedicated to the Apostle Silas, who accompanied Saint Paul on his journey to Philippi. A small church was built here in 1937 at the spot where, according to Christian tradition, Paul, Silas, Timothy and Luke rested en route to Philippi. While it's not a “must-see location”, it's quite photogenic and offers a nice view of Kavala.
The Via Egnatia is the ancient Roman road which ran across the Balkans between the port of Durrës (Albania) and Istanbul connecting the Adriatic Sea and the Bosporus. This first “highway” across the Balkans was built around 146 BC. Kavala was an important station along its route. A few hundred meters of the ancient road are well preserved. Unfortunately the place is not signposted and needs a bit searching. Going out of Kavala center (on 7is Merarchia Str.) there is a parking area and view point 750 m after the Hotel Egnatia on the left street side. From there a path leads 150 m downhill to the Egnatia.
There is a nice, scenic, small fishing harbour at the east end of Kavala, with good restaurants and bars right on the seafront. It's the perfect place to have dinner.