A couple of years ago I went to Crete island, in Greece.
This is one of the most beautiful places of the island. It’s a huge lagoon and to reach it you have to hike a couple of kilometers under the hot sun. Huge effort, but it was totally worth it!
Here is a picture of the lagoon at sunset from the top
And here’s a photo at the level of the lagoon itself
If you ever go to Crete, do not forget to visit this amazing place!