Yanlin Song. Going to the Great Northern Wilderness:  A Scientific and Curriculum-Based Analysis of Premium Study-Tour Route Design under the “Hundred Routes, Hundred Courses” Initiative—— A Case Study of the Xingkai Lake Study-Tour Practice Education Camp Route in Mishan City, Heilongjiang Province. erstp. 2026;2(2):42-47. doi:10.63944/erstp.10