The importance of tourism in the Canary Islands is undeniable, both for its economic impact and its contribution to employment. The sector represents approximately one-third of the total in both metrics, according to the latest data from Exceltur and the Canary Islands Government in 2015. Furthermore, it generates a range of indirect impacts through associated services such as transportation and gastronomy, which constitute a valuable source of revenue for the Canary Islands. Given its significance, it is logical to expect numerous sources of information for analyzing the sector's current situation, evolution, and solutions to its challenges. Among these, the Canary Islands Institute of Statistics (ISTAC) stands out, publishing an extensive collection of data on the sector. This has led to its recognition by the World Tourism Organization as a leading organization for the production of statistics worldwide, highlighting its rigor in the analysis of indicators and its ability to detail results down to the smallest level, even the municipal level. However, although statistical information on the tourism sector in the Canary Islands is abundant, and even though some sources often overlap, there are limitations to the next step in the process: transforming this information into knowledge that is useful for subsequent decision-making. Our project for an information system to measure the impacts of tourism stems from this need to organize the available information and give it meaning and utility so that the various stakeholders in the sector can rely on it. The objective of this project is, firstly, to enhance the value of existing statistical information on the tourism sector. To this end, we have assembled a research group that is part of the Joint Unit for Methodology and Research in Public Statistics, established between the Canary Islands Institute of Statistics (ISTAC) and the University of La Laguna, whose agreement can be found in the Official State Gazette (BOE) No. 82 of April 29, 2014. This agreement includes the development of projects for the integration and systematization of multiple data sources as strategic lines of research. The project builds upon the structure and work carried out by the CajaCanarias – Ashotel – ULL Tourism Chair within this framework, with particular emphasis on the development of subnational statistics, on which it is currently working. The project takes as its starting point the research promoted in this area by the World Tourism Organization in collaboration with the International Network for Regional Economics, Mobility and Tourism (INROUTE). This collaboration is best reflected in the study “A Closer Look at Tourism: Sub-national Measurement and Analysis” (International Network on Regional Economics, Mobility and Tourism & World Tourism Organization, 2012), considered one of the leading international references in this field. The CajaCanarias – Ashotel – ULL Chair of Tourism played a significant role in this study, and is currently collaborating on ongoing studies that have followed the aforementioned research. To strengthen our system, we are drawing on the sub-national statistics of the study conducted by Hernández-Martín et al. (2016) to identify micro-tourism destinations in the Canary Islands. The results of this study allow for a more detailed analysis of the tourism sector and its effects by more precisely defining where tourism activities take place and what impacts they have. Related to this, the project will also utilize the micro-destination statistics published by ISTAC, which are primarily related to the tourism supply. Our objective in complementing the existing statistical system is to develop statistics related to tourism demand that will help to enhance analysis at this level. The project also aims to introduce new approaches to using information sources to produce informative and useful statistics. Therefore, in addition to the traditional information sources mentioned above, the information system for measuring the impacts of tourism will utilize sources that collect a large amount of information but are still relatively unexplored. This group includes those encompassed by what is known as big data, focusing primarily on social media (Instagram, Facebook, and similar platforms) and specialized travel websites such as TripAdvisor, Booking.com, etc. The project is based on the pilot study currently being conducted by the Joint Unit for Methodology and Research in Public Statistics to measure tourism and sustainable development at the subnational level. This project aims to develop a system of indicators applicable to measuring the sustainability of an island (economic, social, and environmental) that can also be extrapolated to other regions. Through this combination of information sources, the system seeks to construct new indicators to address one of the gaps in tourism studies: determining the real impact of tourism on the destination. The impact of tourism activities occurs not only at the economic level but also has social and environmental ramifications. Some of these were already pointed out by the research team members in González & Turégano (2014). This last point is also related to the study of the so-called "Dutch disease," that is, whether tourism development harms the development of other economic sectors, which can have a negative impact on the overall economy. Therefore, the aim is to measure how tourism influences the total economy. The vast amount of information obtained will be organized for analysis through dashboards that allow for the transformation of information into knowledge mentioned at the beginning of this summary. Our ultimate goal is to create a system that is not only valid for Tenerife but also applicable to other islands and regions, transforming the archipelago into a global benchmark. In short, the information system for measuring the impacts of tourism seeks not only to optimize information from various existing sources (and generate information from new ones). It is also a step towards understanding in greater detail the impacts of tourism – in various spheres, including the economic – providing new tools for their measurement at the subnational level. The system resulting from this project will offer useful information and knowledge not only about the internal processes of tourism but also about how these influence other sectors and the economy as a whole. In this way, managers and stakeholders in the sector will have a fundamental tool for decision-making.