Cs2NaMn3F12, one of manganese based fluorides A(2)A'Mn3F12 (A = Rb, Cs; A' = Li, Na, K), has been found to exhibit a typical kagome structure. Here, we report the first successful growth of large-sized single crystals of Cs2NaMn3F12 by means of a hydrothermal method. Good quality of grown crystals is confirmed by the XRD and EDS techniques. Magnetic measurements suggest that Cs2NaMn3F12 possesses an antiferro-magnetic ordering at 2.5 K and a remarkably geometrical frustration effect in the system. (C) 2017 Elsevier B.V. All rights reserved.