Ski resorts.
Gudauri, on the Georgian Military Highway, is the biggest ski area, with lifts climbing to over 3,200 m and a season from December to the middle of April. Bakuriani, near Borjomi, is a family-friendly resort at about 1,700 m, best from December to March.
In Svaneti, Hatsvali sits above Mestia, and Tetnuldi offers long, high runs and freeride terrain. Goderdzi, in the mountains of Ajara, gets some of the deepest snow in the country. A single multi-day lift card covers Gudauri, Bakuriani, Goderdzi, Hatsvali and Tetnuldi.
Off-piste skiing is dangerous, avalanche information can be hard to get, and many insurance policies exclude it without a guide.
Winter city breaks.
Tbilisi is good value in winter, with fewer visitors at museums and churches. A session in the Abanotubani sulphur baths is at its best on a cold day, and Georgian food, wine and supra meals suit the season. Kutaisi makes a quiet base for monasteries and Prometheus Cave.
The Black Sea coast stays mild, but it is a city and garden destination in winter rather than a beach one.
What closes or gets harder.
The Abano Pass into Tusheti is usually open only from about the end of May to September and is closed by snow for the rest of the year. Heavy snow can also close the Georgian Military Highway beyond Gudauri towards Stepantsminda, and roads into Svaneti and other high valleys can be slow or blocked after storms.
Short daylight and icy trails rule out most long hikes. Build in spare days, check road conditions each morning, and use a driver with winter tyres and mountain experience.