I got some hikes in March alone in Balchova hills. They are comfortable because you can reach the starting point by metro! So I did it every Sunday.
Balchova dam about 15km wikiloc
Behzattepe(~700m) – Manastır about 19km wikiloc
Korutürk – Karabelen(~1000m) about 25km wikiloc
Manastir about 21km wikiloc