Very useful small app has made for all tourists, skiers and hikers in Bulgaria. With this app you may connect with Mountain Rescue Service in Bulgaria sending SMS message with GPS coordinates and your condition. Or call directly. The mountains here are not very high, but in seasons late autumn, winter and early spring very unpredictable. I'm not sure, how much and how is introduce to tourists the requirement for travel insurance, but it's good to have and know how to connect with Mountain Rescue (PSS) Bulgaria. So if you plan to hike in Bulgarian mountains, install this app, it's so small, but so helpful.

See/install app from Google Play - https://play.google.com/store/apps/details?id=eu.vmobile.pss

See more about mountain insurance - http://www.insurancebulgaria.com/mountain-rescue-insurance