Sure.
Every island is basically a mountain that's high enough to break the surface.
Yes, Volcanoes.
mountains under deep water. I guess.
in the water
nope
There are approximately 326 million trillion gallons of water on the Earth. Water is a constant moving cycle and there is a lot of it on the Earth. The mountains under water are just land masses that have been covered by the water.
Everyone knows there are mountains underwater like Mauna Kea in the Hawaiian island. But, yes. There could be some mountains under water which no one knows about.
under water moutain
The sea floor, under water mountains, sea life, under water lava flows, etc.
An ocean ridge is a line of mountains in middle of the ocean under the level of water.
Mid-ocean ridge or mid-oceanic ridge
mountains
Yes. There are both mountains and valleys under the sea.
a well known place is the blue mountains or the under water aqriman.