Hoan Kiem Lake, Hanoi, Vietnam - yes it is green looking - its green, and many shades of it depending on the season and weather conditions.
Hoan Kiem Lake – yes it is green looking – its green, and many shades of it depending on the season and weather conditions.

When you first see Hoan Kiem Lake, you will probably think ‘It’s Green !’, you will be right and relieved to know that this is caused by copper deposits in the soil.  It has always been green and was once called Luc Thuy, which means green water lake.