A comprehensive breakdown on volume and expenditure of overnight tourism visits undertaken by GB residents in Wales and rest of GB for 2018.
Dadansoddiad cynhwysfawr o’r nifer a gwariant yr ymweliadau twristiaeth dros nos a gynhaliwyd gan drigolion Prydain Fawr yng Nghymru a gweddill Prydain Fawr ar gyfer 2018.