Chakavian
Chakavian in its actual use is the least spoken Serbo-Croatian dialect, being spoken only by 12% Croats. It is now mostly reduced in southwestern Croatia along the eastern Adriatic: Adriatic islands, and sporadically in the mainland coast, with rare inland enclaves up to central Croatia, and minor enclaves in Austria and Montenegro. All areas of old contacts with Romance languages.
Krk
Krk is well known for its historical language diversity. The Middle Chakavian dialect of Croatian is the primary dialect used on the island. Up to 1898 (the day the last speaker of Dalmatian language, Tuone Udaina died), five languages were spoken on the island: Venetian, Croatian, Dalmatian, Istro-Romanian.