This research was conducted to determine the relationship between environmental sensitivity, ecological attitude, and ecological product purchasing behaviour of tourists. Within the scope of the research, a survey was conducted on foreign tourists who visited Manavgat, Turkey. The Smart PLS program was used to determine the relationships among the variables. According to the results of the research, it has been determined that tourists’ environmental sensitivity has a strong effect on their ecological attitude and their behaviour in purchasing ecological products. Moreover, ecological attitude plays a mediating role in the relationship between environmental sensitivity and ecological product purchasing behaviour. Many suggestions are offered to the academicians, business managers in the sector, and destination management organisations at the end of the study.