sunglade

plural sunglades

1. A glade in a forest with a lot of sunshine coming in.
2. An area of sunlight on a body of water.

   […] sometimes, also, the rising or setting sun produces a sunglade, like a river of molten gold, or rather of pure fire, flowing across the ocean toward the earth […]

   1874, Jane Goodwin Austin, Moonfolk: A True Account of the Home of the Fairy Tales, page 14

   1 more example

   Moonglade and sunglade on ocean or lake have a haunting and suggestive beauty. The reflected lane of light supplies what the mind craves in a picture—a path that seems to lead to some place of unknown and longed-for happiness […]

   1913, Advance, volume 98, page 232

3. A sunbeam.