Few days in Rila, Bulgaria

Hi!

By extending a work-related trip to Bulgaria I’ll be able to spend a few days walking in the Rila mountains. I’d like to activate some SOTA hills while there. Due to travel constraints I’ll have only a HT with the RH-770 antenna with me, so my options are severely limited - to 2m and 70cm FM. Still, I’d rather make the most of it. Therefore if any of you fellow SOTA HAMs could offer a word of advice, especially about popular simplex frequencies in the area, I’d appreciate it very much.
I’ll be out there from the 18th to 22nd September, starting from Rilski Manastir. I do not know Bulgarian, but if a CQ in English won’t raise any reply I know enough Russian to complete a QSO.

73!
Marcin SQ9OZM