Complex sentence: Sustainable tourism is an adopted practice in successful ecotourism bugaye an Ecotourism certication, environmental sustainability is one of the essential six principles that must be achieved at a 100% level.
Split into simpler sentences: Sustainable tourism is an adopted practice in successful ecotourism businesses. In the application to receive an Ecotourism certication, environmental sustainability is one of the essential six principles that must be achieved at a 100% level.