The star features of the 3.3-sq-km reserve, 9km northwest of Kutaisi, are a couple of dozen 120-million-year-old, fossilised dinosaur footprints, and an attractively lit 300m-long cave with a small underground river. The reserve is covered in thick, subtropical Colchic forest and has a couple of panoramic lookout points.

This 1.4km-long cave at Kumistavi, 20km northwest of Kutaisi, is a succession of six large chambers followed by a 400m-long underground lake. Sections are truly impressive, and the guided visits along a well-made concrete path are enhanced by discreet coloured lighting and a little background classical music.