For the participants that want to book/cover their accomodation by themselves and accommodation is not provided by the organizing committee to them please find some hotel suggestions below:
Palladion Hotel
Website: https://hotelpalladion.gr/
Grand Serai
Website: https://www.grandserai.com
Hotel Alexios
Website: https://hotelalexios.gr/
Brettania Hotel
Website: https://www.hotelbrettania.gr/
Nantin Hotel (relative near to the congress hall)
Website: https://www.nantinhotel.gr/
Egnatia Hotel
Website: https://www.egnatiahotel.com/
Du Lac Hotel
Website: https://www.hoteldulac.gr/
Saz City Life Hotel
Website: https://www.saz-hotel.com/
You can book either using the hotel website or using the website: