If you're looking for public transportation from Poti (Samegrelo-Zemo Svaneti, Georgia) to Kobuleti and Batumi (Adjara, Georgia): the minibus parking is located at Tsotne Dadiani Statue Square (there's a large turnaround).
The fare in 2026 is 10 GEL ($3.85) to Kobuleti and 12 GEL to Batumi
Payment is in cash to the driver.
The minibus may say "Batumi" on the sign: this will also work for you, as it goes via Kobuleti.
The distance between the cities is approximately 35-40 km (depending on your destination in Kobuleti) and 70 km (to Batumi)
It is unlikely that the driver will speak English (only Georgian and sometimes Russian). Therefore, it is a good idea to use an online translator for communication and online maps to navigate the area.