What is natural resources in tourism?

Eco tourism as it can be called now, consists not only of highlighting the Natural Resources like mountains, oceans, forests but also includes the local inhabitants, their lifestyle, culture too. It is true that tourists are mainly attracted by the sky high mountains, blue oceans, dense forests. There are knowledgeable tourists who are keen to mix with the local populace to acquaint with their culture,way of life etc. So, while show casing tourism of a country,these aspects are to be taken into consideration, apart from natural resources.