This article summarizes a study whose aim was the analysis of the content concerning the block of Outdoor Activities in the Natural Environment which is included in the annual syllabus designed by PE teachers and, thus, that tends to be developed during the course at different levels of Compulsory Secondary Education. To do so, the main instrument used has been a questionnaire that has been applied to 51 PE teachers of the Almeria province (Spain). These teachers were taking part on an in service training course around physical and sports outdoor activities in the natural environment. Data obtained has been analyzed using SPSSV.15. Among the findings, we show that teachers pay more attention to the contents related to the practices of hiking, trecking and orienteering. This seems to be due, on the one hand, to the fact that these contents are the most regulated (among the outdoor activities) by the Official Curricula and, on the other, to the existence of many resources and bibliographic materials on this topic.