Exit the airport:

As you leave the airport, follow signs for Chalkidiki/Nea Moudania (A25/EΟ16).
Merge onto A25/EΟ16:

After exiting the airport, merge onto the A25 (ΕΟ16) highway, which heads south towards Nea Moudania/Chalkidiki.
Follow the signs for Nea Moudania.
Stay on A25:

Continue driving on the A25 for about 55 km, passing through several towns.
Keep following the signs for Kassandra/Afytos.
Take the exit for Kassandra/Afytos:

As you approach Nea Moudania, look for the exit towards Kassandra/Afytos.
Take this exit and continue on the local road towards Afytos.
Arrive in Afytos:

After about 10-15 km, you'll reach the village of Afytos.
Follow signs or use GPS to locate Petrino Eco Village in Afytos.
Estimated drive time: Around 50-60 minutes (approximately 70 km).