41 Educational and training services, namely, arranging and conducting of workshops, and seminars in the field of environmental and energy efficiency matters and distribution of course materials or training materials therewith; educational and training services, namely, arranging and conducting guided educational tours of power stations and hydropower stations; educational and training services, namely, arranging and conducting of workshops, and seminars in the fields of power supply, waste management, alternative fuels, farming of fuel crops, health and safety, engineering and construction and distribution of course materials or training materials therewith; provision of visitor attractions, namely, recreational services in the nature of nature reserves; provision of visitor attractions, namely, visitor centers for recreational and educational purposes; provision of visitor attractions, namely, guided power station tours; educational and entertainment services, namely, the organization of conferences in the fields of environmental and energy efficiency matters, power supply, waste management, alternative fuels, farming of fuel crops, health and safety, engineering and construction, seminars in the fields of environmental and energy efficiency matters, power supply, waste management, alternative fuels, farming of fuel crops, health and safety, engineering and construction, exhibitions in the fields of environmental and energy efficiency matters, power supply, waste management, alternative fuels, farming of fuel crops, health and safety, engineering and construction for cultural or educational purposes, organization of sporting, cultural, and social entertainment events; entertainment and educational services in the nature of competitions in the field of entertainment, education, culture, sports; publication of printed matter and non downloadable online matter, namely, articles, magazines, reports, letters, factsheets, leaflets, posters, and videos