海南铁路五一期间加开夜间列车

Group 1 - The core point of the article is the planned increase in train services by the Haikou Railway Department to meet the travel demand during the May Day holiday [1] - The Haikou Railway Department plans to add one pair of circular island high-speed trains from May 3 to May 4 [1] - The specific train schedules include C7398 from Sanya at 18:57 to Haikou at 21:35, with multiple stops, and C7399 from Haikou at 23:20 to Sanya at 1:14 [1]