In Bishkek minibuses / marshrutkas to Karakol leave from the Western Bus Station (западная автостанция), Shymkent 1, Bishkek, Map Location: 42.885313, 74.568164 .
The minibuses leave from the parking lot on the east side of the bus station. The ticket window is right inside the entrance and the cost is 350 som. There is no need to go into the big main bus station building.
The drive follows the north side of the lake, takes about six hours, and there is one bathroom break.
In Karakol, the buses arrive at the Main Bus Station at 149 Przhevalskiy Street, map location: 42.504718, 78.393056.