Roach, who joined BTMI, then the Barbados Tourism Authority, in 2002, will take up a new opportunity with the Grenada Tourist Board later this year, BTMI confirmed on Thursday (8 April).
Roseanne Myers, BTMI chair, said: "On behalf of the board, management and staff [of BTMI], we say a sincere thank you to Petra Roach for her years of service and leadership.
"She has been a tremendous asset to Barbados for two decades, and her contribution to the growth and development of tourism sector has been outstanding."
