Prajak Sillapakhom Lake, known as Nong Prajak Park, is a vast stretch of water within Udon Thani Municipality.It was fomerly called “Nong Na Klua” and later renamedPrajak Sillapakhom in memory of Prince Prajak Sillapa-khom.Nong Prajak was in 1987 given a face-lift to to celebrateHis Majesty the King Bhumibol’s 60th birthday anniversary.Colourful decorative and flowering plants add to thepleasant atmosphere of the lake.