3 ms·

Is an 8-acre lake ok? https://www.wolframalpha.com/input?i=world+water+area+%2F+world+population https://www.wolframalpha.com/input?i=world+water+area+%2F+wo..

• jraedisch 3y ago
  That would be fine. There are also many that do not like swimming.
• lostmsu 3y ago
  Waterfront is usually measured by shoreline length as we can't build in the middle of the ocean efficiency.