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So far Udo has created 401 blog entries.

October 2026

Fun

2026-10-06T18:56:10+01:00

A biological pool is much more than the sum of its components. A biological pool is a place for contemplation, communication, and imagination. It's our place to dream, contemplate, and bathe, to be a living being among other living beings. Spending holidays with a large family, these words easily become reality. Suddenly, there's a [...]

Fun2026-10-06T18:56:10+01:00

Birds are welcome

2026-10-06T18:52:04+01:00

It is always a joy to observe animals around a biological pool. Winged creatures are the most common visitors that do not live there permanently, unlike frogs and many species of dragonflies. Winged animals are always welcome, as long as they are only visitors and do not become residents. This excludes the presence of [...]

Birds are welcome2026-10-06T18:52:04+01:00

Swimmer’s itch

2026-10-06T19:24:30+01:00

The case regarding cercariae at the Alqueva dam is an unprecedented scientific discovery in Portugal, made public in late September 2026. It was discovered in the context of a study by the Institute of Hygiene and Tropical Medicine of the Nova University of Lisbon and published in the scientific journal Science in One Health. [...]

Swimmer’s itch2026-10-06T19:24:30+01:00

September 2026

Forget-me-nots

2026-09-01T10:54:48+01:00

Water lilies are the most popular aquatic plants in biological pools, as they are the best known and always have the largest flowers. But it's worth looking at smaller species, sometimes a little hidden among other plants on the banks. Forget-me-nots of the genus Myosotis, for example. Many already know them by name, but [...]

Forget-me-nots2026-09-01T10:54:48+01:00

Iberian meeting

2026-09-01T10:53:49+01:00

The biennial Iberian Meeting of the Iberian Group of Naturalized Bathing Waters (GIABN) will take place end of September 2026, again in Portugal. The 3-days event includes guided tours, presentations, discussions, and networking. This time it will be held in the Santarém area, at a resort with a biological swimming pool, from September 30th [...]

Iberian meeting2026-09-01T10:53:49+01:00

Blue sky

2026-09-01T10:53:25+01:00

The waterproofing liner used in biological pools is gray. Looking at a piece of this material in light gray, one wouldn't easily imagine the transformation of the water's color that will occur when the biological pool is full. What is surprising is the blue of the water's surface. Depending on the angle of observation, [...]

Blue sky2026-09-01T10:53:25+01:00

August 2026

Informed swimmers

2026-08-01T16:04:34+01:00

Taking a dip in a biological pool is an experience few people have yet had, although many would like to try it. Several accommodations scattered throughout the country offer the ideal opportunity for this. Thus, many tourists experience swimming in biological pools for the first time during their vacations. For these beginners, information like [...]

Informed swimmers2026-08-01T16:04:34+01:00

Emergency exit

2026-08-01T16:00:25+01:00

A water body in the Mediterranean landscape is not only appreciated by humans; it is also extremely attractive to wildlife looking to quench their thirst, especially on hot days when temperatures reach high levels. Generally speaking, a natural swimming pool serves this function, whether for birds or four-legged animals. While almost all mammals can [...]

Emergency exit2026-08-01T16:00:25+01:00

Recommended: natural swimming pools

2026-08-01T15:59:20+01:00

There is heat, there are wildfires, and there is a growing realization that this time is for real - something has to change significantly. Driven by the imperative to adapt to climate change and conserve water, several local municipalities have adopted natural swimming pools as a measure for water and environmental efficiency. A case [...]

Recommended: natural swimming pools2026-08-01T15:59:20+01:00

July 2026

Holiday with swimming pond!

2026-07-01T09:59:07+01:00

Have you ever tried a holiday with swimming pond? Holidays by the sea, next to a river beach, or near large dams promise swimming in naturally high-quality water. Anyone who enjoys water can also swim in a biopool for tourist use. With 100% natural and biological water treatment, your eyes won't sting and your [...]

Holiday with swimming pond!2026-07-01T09:59:07+01:00
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