Gal (in Georgian: Gali) is a city in Abkhazia.
Gali is a very small town, you can just walk out.
The traffic on the road from Gali to the Georgian border is scarce. The price per person in a marshrutka or shared taxi from Gali to the Georgian border is 50 rubles. It is also walkable, but better early in the morning, and watch out on the way.
Other useful info
Just be generally careful, as "bandits" are said to roam the place.
Rovingsnails: had to get off a car nearby Gali when the driver threatened to take them out of the main road unless they showed their passports and gave him money. The police check point at the exit of the city was a good place to ask the driver to stop.
Nomadwiki & Trashwiki
Check Nomadwiki for info on accommodation, showers etc. or Trashwiki for dumpsters...and share your wisdom :)