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Authors' Copy. HIGHLIGHTS The scuba diving tourism industry's sustainability is affected by various problems. These problems were investigated by engaging scuba diving operators in two MPAs. Relations with other elements in the Scuba Diving Tourism System were assessed. Operators felt the potential of the scuba diving industry, yet limited support. General and ad hoc measures to enhance the industry's sustainability were advanced. ; This document is the accepted Authors' Copy of the paper published in Tourism Management 59: 385-403. DOI:10.1016/j.tourman.2016.09.004. The original manuscript was received on 19 April 2016, revised on 2 September 2016, accepted on 3 September 2016, made available online on 12 September 2016. An embargo period of 36 months applies to this Journal. This paper has received funding from the European Union (EU)'s H2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No 643712 to the project Green Bubbles RISE for sustainable diving (Green Bubbles). This paper reflects only the authors' view. The Research Executive Agency is not responsible for any use that may be made of the information it contains. © 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/

In order to obtain robust and measurable data from the marine environment, citizen science projects need user-friendly tools that, during dives, autonomously gather information in an easy, low-cost and integrated way. Data collected from different devices and by different untrained divers must have good estimation of the position where the information has been acquired. With this goal, in the context of the Green Bubbles project, a novel platform, called DocuScooter has been designed and developed. DocuScooter implements all the algorithms to filter and merge data with correct timestamp and position preparing the complete mission report. After the mission, the diver can upload the report on an appropriate web service to produce a 3D documentation. In order to obtain the underwater position during the dive, a tailored device compatible with the platform is also presented. Result of the prototype of the platform and the first results of the position estimation algorithm are presented and discussed. ; This paper has received funding from the European Union (EU)'s H2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No 643712 to the project Green Bubbles RISE for sustainable diving (Green Bubbles). This paper reflects only the authors' view. The Research Executive Agency is not responsible for any use that may be made of the information it contains. © 2017 Panebianco et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and build upon your work non-commercially.