<prompt> Translate the following text to EnglishMto huo umezungukwa na mabaki ya Ziwa Takatifu, ambalo lilitolewa maji katika miaka ya 1920 ili kuzuia mbu wasizaliane katika maji hayo.  <response>: Surrounding it are the remains of the Sacred Lake, drained in the 1920s to prevent mosquitoes from breeding in the stagnant water. 