On this island there are many sources of fresh water. Most of them are in the village of Panagia, but almost every village has at least one source. It is not so many of islands in Greece.
Source of mountain water in Panagia, below the sycamore is one of the places that adorn Panagia. Water comes from the heart of the mountains.
On the beach Aphrodite under the monastery of St. Michael the Archangel down the rocks flows fresh water. You can "take a shower" with it and immediately after enter the sea which will look like a bath in a hot tub.
So, on this island, you can usually see the pine trees and low vegetation in the areas affected by the fire. When you go to the village of Maries, as real refreshment, beside the endless olive groves, you will see deciduous trees, willow and oak... I like this nature because it reminds me of nature in Serbia...
You can get to the village of Maries if you go inland from Limenaria center. From the central intersection head towards Castro. Another option is to start from the Skala Maries and drive some 12km to the Maries, and then another 3-4 to the lake. Road to the Maries is a real pleasure... you can make some pauses so you'll stop by the monastery of Panagia, then to the church at the entrance to a village, a walk through the village...
When you approach the lake, first you will see vendors of honey by the roadside. You can try and buy here a really good honey and delicious product of honey, such as famous honey with walnuts, zucchini, watermelon... Here you can buy local olives and olive oil. Olive oil is more expensive than in the city.
There are a total of 12 waterfalls below and above the lake. More interesting and accessible waterfalls are above the lake. It takes a little hiking and adventurous spirit to climb up to them, but I think it's worth it. Stream itself is clear with lots of fish. My recommendation is to put on your shoes and climb to the third waterfall. I think that you will not resist to not wade into the cold and clear water... and you can take a swim... it feels great...
PS. If you decide to visit this lake have in mind that the road from the village of Maries to the lake is gravel road and that the first thing you need to do, after returning from the trip, will be washing your car.
Also I have to say that many who have visited this lake in the summer were disappointed with it. In fact, the rain is falling on this island for almost half a year, so the lake during the summer appeared to be a small and dirty! Otherwise, during the summer the lake is not at all attractive, and the stream is almost dry up. So if you decide to go to the lake to consider that you can find streams and waterfalls are almost gone :((