The lake in itself is beautiful and worth a visit, no doubt about it.
To enjoy the light on the turquoise water you have to visit early in the morning. It takes about half an hour to reach the lake, coming by car from Antsirabe. The volcano crater filled with slightly acid water, about 160m deep. It is possible to swimm but the water is quite cold.
The entry costs 1 Euro pro visitor.
Look out for countless children and adults following to sell stones or other useless items,, do not show the slightest interest if you don't want to get hasselt all the way long.
There is a possibility to drive further west on a quite bad dirt track to Betafo which is a beautifull place to visit as well.
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