floating island

noun3

1. •
   An aggregation of driftwood and roots, or vegetation, capable of bearing soil, which floats on the surface of (bog or lake) water or is floated out from a river delta or similar.

   • Such a floating island could carry small animals such as frogs, lizards, or rats, the resistant eggs of other animals, and specimens of plants not adapted to oceanic dispersal. — 2010
2. •
   A French cold dessert consisting of an "island" of meringue, made of egg whites and sugar, floating in a "sea" of custard.
3. •
   Synonym of kitchen island.

   • The floating island doubles as a place for the children to do their homework and eat meals. — 2006