After the construction began in the summer of 2007, by the first winter of that year, the lake and the adjoining Earth body filled up a good two-thirds with water. After the second rainy season, which had below-average precipitation, only a few centimeters of the high-water level remained to be filled. In the third winter (2009/10), so much rain fell that we could have filled several more retention spaces.

Already within the first year, a new seepage spring arose which since then has flowed continuously throughout the year. The construction of Lake 1 was only the beginning. Since then, we have created several further water retention spaces.

It is as if there has never been anything other than a water retention space. Many people who visit Tamera for the first time cannot believe at first that it is anything other than a natural lake. On the terraces by the shore, we have created an edible landscape and planted thousands of fruit trees and shrubs. Wild animals, such as the otter, have settled here. And the birds have returned. We have observed 93 different species of birds in Tamera, some of which are very rare species found only in water-rich areas.