ต้นไม้, ป่า, เส้นทาง, ทาง, สะพาน, ทางเดินป่า, ไป, เส้นทางป่า, ธรรมชาติ, ภูมิประเทศ, เส้นทางศึกษาธรรมชาติ
Public Domain
ภาพถ่ายปลอดค่าลิขสิทธิ์ที่เกี่ยวข้อง
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