Sustainable tourism is made up of three pillars that make up sustainability: economic, social and environmental.

Tourism sustainability is not achieved with a single element, it takes all three. There is no social sustainability, economic sustainability and environmental sustainability. Sustainability there is only one, and it is environmental, economic, and social. Sustainability as a term needs its three aspects.

ECONOMIC PILLAR

The tourism industry is a powerful engine for growth and an important source of income that can help developing countries.

The economic benefits that tourism brings with it are many, such as:

— Currency: generates an expense made by visitors in restaurants, hotels, shops, etc.

— Jobs: tourism increases the job offer caused by tourist facilities, thus stimulating the creation of new companies that generate more profits and more jobs.

Seasonality is due in large part to the climatic conditions of the planet and its variations according to the times of the year. In some tropical destinations where the temperature and climate are maintained throughout the year, tourism can be maintained where the majority of the population enjoys their leisure time or on many occasions school holidays cause seasonal problems that affect the economy due to saturation. Of resting places in summer and almost complete emptiness in winter, so many companies do not work all year round, complicating profitability and finding staff who want to work seasonally.

Tourism monoculture threatens the economic sector of sustainable tourism since the prospects of wealth and development have led many countries to consider it a universal panacea, it is also a very fragile sector that can be influenced by issues that cannot be controlled such as natural disasters, attacks of terrorists, increased crime or the rise of other similar, cheap or novel destinations.

Due to the arrival of tourists to a destination, it can lead to an increase in prices, increasing the standard of living that can cause certain problems, the responsibility of tourism companies to correctly contribute to sustainable development is to carry out a policy 'responsibility corporate social 'to integrate social, environmental and economic concerns

SOCIAL PILLAR

It is the most forgotten aspect of tourism sustainability, a responsibility for the social impact it has on the tourist who causes it. The tourist who travels in a group, does not know the language and goes from one place to another, the traveler who goes on his own without haste, talking with people, interacting with them, exchanging experiences. The experience of traveling alone, especially if it is in a foreign country, allows the tourist to become a true traveler.

There are social problems such as inconveniences in big cities with traffic and constant pollution, crime, etc. Or inconvenience to the local population.

ENVIRONMENTAL PILLAR

This industry has been seen for some years as a real threat to the planet's natural resources if it is not carried out properly. The ‘smoke-free industry’ idea was considered on the grounds that it did not cause environmental impacts. And it is that tourism, whatever the chosen sector, is due to a natural environment that makes it impossible to visit a city with pollution, a beach full of oil or a forest burned by a forest fire.

A concern for the environment in many cases has come late, especially in after the extinction of many areas and the demolition of hotels located on the beach line, many agencies give their income to nature conservation organizations and generate advice to customers to contribute in a way that becomes something daily and habitual

The benefits that tourism can bring:

The conservation of natural heritage in many countries of the world are protecting their natural spaces, their flora, and fauna because their source of income depends on that.

The sensitivity of society with tourism showing the visitor unknown aspects that serve to raise awareness about the importance of protecting the environment, from here the sense of ecotourism arises to generate greater contact with the natural environment and an excellent tool for education environmental.