
The name Borjomi is known from the mineral water bottle. The town itself is a narrow green valley between mountains, with a park where people drink straight from the springs, and cool air even in August.
May–October is best. Summer is cool and comfortable compared with Tbilisi.
There is no train and no comfortable public transport between Georgian cities. The practical option for a family is a car with a driver who meets you at the airport, stays with you throughout, and knows the mountain roads.
Yes, the same source. You drink it straight from the spring in the park — slightly salty and warm, different from the bottled version.
Yes, and that is its best use: a lunch and rest stop that splits the six-hour drive in half.