The trails are categorized into three main levels: recreational, mountain, and alpine, each with their own sub-levels of difficulty (T1-T6). The trails are well-marked with signs and trail markers that indicate the level of difficulty, and it's essential to be prepared with the right equipment and skills for each type of trail. Recreational Trails (T1)Signs: Yellow Trail Markers: Yellow diamond or arrow Difficulty: Easy, flat or gentle slope Equipment: No special shoes or equipment necessary Skills: No special skills necessary Mountain Trails (T2, T3)Signs: Yellow with red and white points Trail Markers: Red and white stripes Difficulty: Medium to difficult, possibly steep in parts Equipment: Hiking shoes, all-weather clothing, hiking sticks could be useful Skills: Some sure-footedness, elementary map reading skills Alpine Routes (T4, T5, T6)Signs: Blue with blue and white points Trail Markers: Blue and white stripes Difficulty: Very difficult, often no trail, exposed and demanding terrain Equipment: Mountaineering boots, clothing and gear; map; compass Skills: Good terrain assessment, map reading skills, strong alpine experience, familiarity with technical alpine equipment