Privacy
We count visits with Google Analytics 4, and only after you agree. Until you answer, nothing is loaded and nothing is sent anywhere. If you say no, the site works exactly the same.
What we get from it is how many people read which pages. Google's advertising signals are switched off (ad_storage, ad_user_data, ad_personalization, google_signals), so your visit is not linked to your Google account.
You can change your mind whenever you like: the Cookie settings link at the bottom of every page asks the question again.
Your choice of light or dark theme and of language is stored in your own browser and never leaves your device.
The map loads background tiles from OpenFreeMap, which receives your IP address as any web request does.
This site is registered with Google Search Console, which tells us which searches bring people here. That data is already aggregated: it identifies no one.
The person responsible for this site and for any data mentioned here is identified on the Contact page.
Questions: [email protected].
The family
Do you prefer beaches, lakes, mountains, waterfalls, islands, rivers or canyons?
Same idea, other landscapes: field atlases built on open data, month by month, in seven languages.
beaches
Find your beach: sea temperature, sun and swimming month by month.Visit 
lakes
Every lake on Earth: water temperature, ice, depth and the shore.Coming soonVisit 
mountains
Every summit in 3D: summit weather, the 0 °C line, huts and trails.You are here
waterfalls
Every waterfall: height, flow month by month and when it roars.Coming soonVisit 
islands
Every island from the sea up: size, sea temperature, ferries and 3D.Coming soonVisit 
rivers
Every river from source to sea: the journey, the flow and the basin in numbers.Coming soonVisit