Sra Si Siad, also known as the Rim Khao or Khao Rakhang Lower Reservoir, is a popular spot for relaxation and exercise among the locals in Trat during the evening. In addition to serving as a public park, it acts as a venue for the community to celebrate various events and traditions, such as the Loy Krathong festival, running competitions, charity bike rides, and other activities organized by the province.