RT Journal Article T1 Influence of a Nautical Activity Programme on Success Rate in High School Students A1 Medina Rebollo, Daniel A1 Sáenz-López Buñuel, Pedro A1 Murta, Luis Manuel da Cruz A1 Fernández Gavira, Jesús A1 Fernández Ozcorta, Eduardo José AB This study examines the academic impact of a structured, nature-based intervention involving nautical activities in coastal environments. Implemented across two secondary schools in Huelva (Spain) as part of the Atlantic Youth Erasmus+ project, the programme engaged 230 students (46.08% female) over a seven-year period (2013–2020). A quasi-experimental interrupted time series (ITS) design was used to analyse shifts in key educational indicators – on-time graduation, dropout, grade repetition, and absenteeism – relative to provincial and regional trends. The findings reveal substantial improvements, particularly in graduation rates and dropout reduction. At CSE González de Aguilar, on-time completion rose from 56.3% to 64.5%, while dropout fell by 58.5%. CSE Guadiana saw an increase in graduation from 49.5% to 59.9%, with a more modest decline in dropout. A difference-in-differences analysis confirmed that these gains outpaced broader educational trends. The intervention’s effects varied by context: dropout reduction was more pronounced in González de Aguilar, whereas improved retention was observed in Guadiana. Despite limitations related to follow-up duration and uncontrolled contextual factors, the results underscore the educational potential of immersive, nature-oriented learning, particularly in enhancing academic resilience and student engagement. PB Paradigm Publishing SN 1899-4849 (electrónico) YR 2025 FD 2025 LK https://hdl.handle.net/10272/27456 UL https://hdl.handle.net/10272/27456 LA eng NO Medina-Rebollo, D., Sáenz-López Buñuel, P., Murta, L. M. da C., Fernández-Gavira, J., & Fernández-Ozcorta, E. J. (2025). Influence of a Nautical Activity Programme on Success Rate in High School Students. Physical Culture and Sport. Studies and Research, 110(1), 48–61. https://doi.org/10.2478/pcssr-2025-0023 DS Repositorio Institucional de la Universidad de Huelva RD 13 jun 2026