not sure what do you mean by spectacular, but Lake Toba already got plenty of problems with its environment [1]. [1]. https://aquaculturemag.com/2018/09/25/ind

not sure what do you mean by spectacular, but Lake Toba already got plenty of problems with its environment [1]. [1]. https://aquaculturemag.com/2018/09/25/indonesian-fish-farmers-get-early-warning-system-for-lake-pollution/ https://aquaculturemag.com/2018/09/25/indonesian-fish-farmer...