Tbilisi sits in the middle of the half of Georgia that has the roads, which means an unusual amount of the country is reachable and returnable in a day: the ancient capital half an hour away, a cave city, a wine region, a desert monastery on the Azerbaijani border and, at a stretch, the high Caucasus. This is genuinely convenient and it is also the reason a lot of trips here consist of seven nights in one hotel and five long drives. Some of these should be done in a day. Two of them should not.
Under an hour
Mtskheta, the old religious capital, with a cathedral, a hilltop monastery and a confluence of two rivers.
Jvari, the church on the ridge above it, which is the view on the postcards.
Tbilisi Sea and the open air museum, which are barely trips at all and fill an afternoon.
Which makes this the half day option, and the one to do on an arrival or departure day.
One to two hours
Gori and the cave town, pairing a Soviet era museum with a settlement carved into rock.
Sighnaghi, the walled hill town in the wine country, with the views everyone photographs.
Telavi and the cellars, which is the wine country done properly.
Davit Gareja, the cave monastery complex in semi desert towards the Azerbaijani border.
All of which are full days, and all of which are considerably better with a driver than on two marshrutkas.
Two to three hours and beyond
Kazbegi and the church under the mountain, which is done as a day trip constantly and is a long one.
Borjomi, the spa town and national park, reachable but better on the way west.
Vardzia, the cave city, which is too far to do well in a day from the capital.
And this is where the rule changes, because the driving starts to be the day.

Doing them without a car
Marshrutkas from the city bus stations to everywhere on this list, cheap and frequent.
Trains to some destinations, slower and more comfortable.
Shared taxis, which fill in the gaps and leave when full rather than on a timetable.
Hired drivers, which are inexpensive and the only sensible way to combine two places in one day.
Organised day tours, which handle Davit Gareja and Kazbegi well because both are awkward independently.
And an early start, because return marshrutkas thin out in the afternoon.
How to choose
Half a day and no plan: Mtskheta.
History and a strange museum: Gori and the cave town.
Wine: the Kakheti towns, with a driver.
Landscape that looks like nowhere else: Davit Gareja.
The photograph you came for: Kazbegi, ideally with a night.
Rain: the capital itself, which is well supplied with indoor options.
Where this fits in a Georgia trip
Two or three days out of a week based in the capital, with the rest of the country reached by moving rather than returning.
For the closest and best of them, our Mtskheta day trip guide covers the half day.
For the mountain and the church that are the point of the long day north, our Kazbegi and Gergeti guide covers it.
And for the wine country, the towns and the cellars, our Kakheti wine guide covers the region.

The short version
Do Mtskheta as a half day on an arrival or departure day. Do Gori, Sighnaghi or Davit Gareja as full days, with a driver rather than two marshrutkas if you want to combine anything. Do not drive yourself around the wine country. Treat Kazbegi as a day trip only if the whole trip is short, because a night in the village buys the evening and a second chance at the morning, which is the entire reason to go. And keep the count to two or three in a week, because the best parts of Georgia are past the range of a day trip and staying in one hotel is how people miss them.
The strangest of them is Davit Gareja, two hours out on a semi desert ridge, with monastic cells cut into the rock and painted caves above them. Davit Gareja covers what to know before going, including the contested border that runs along the top.
