A "submerged platform" refers to a structure that is partially or completely underwater, like a raised surface or foundation.
Sentences with «submerged platform»
The scientists trained the rats to find a submerged platform in a pool, with the help of surrounding cues. (scientificamerican.com)
The mice then had to find a submerged platform in a water maze using visual cues. (newscientist.com)
Other mazes consist of a large tank of water with a submerged platform, which animals must learn to swim towards and clamber on to to ensure safety. (newscientist.com)