Primarily by diverting any surface streams and run-off water they intercept, underground. Otherwise, none.... unless a passage roof collapses and forms a doline.
I don't really know what you define as an underwater cave. Some caves have been drowned by rising sea-level, having formed on land at times of lower sea-levels (i.e. during the Ice Age glacials). Others are entirely terrestrial but full in whole or in part with water. Nevertheless, the answer is that normally caves carry water from limestone uplands to their outlet (risings or springs) at lower altitude, so their effect is to replace open streams on the surface with underground ones.Other than that or the occasional collapse of a cave roof to create a doline on the ground above, they don't affect the land surface.
Weathering breaks down rocks and minerals on the land surface, leading to erosion and soil formation. This process can shape landscapes by creating features such as valleys, cliffs, and caves. Over time, weathering plays a critical role in sculpting the Earth's surface.
Regions of the Earth's surface with abundant limestone exposed are typically known as limestone terrains or limestone landscapes. These regions often feature distinctive topography due to the erosion of the soluble limestone rock by water, forming features such as caves, sinkholes, and limestone pavements.
They can feel quite cold in wamr weather and relatively warm in Winter - but most significant caves settle on the mean annual air temperature of the location in which they lie. It's not an entirely hard-and-fast rule because individual caves are affected by their natural ventilation and the presence or not of streams, but it's a good guide.
caves
I don't really know what you define as an underwater cave. Some caves have been drowned by rising sea-level, having formed on land at times of lower sea-levels (i.e. during the Ice Age glacials). Others are entirely terrestrial but full in whole or in part with water. Nevertheless, the answer is that normally caves carry water from limestone uplands to their outlet (risings or springs) at lower altitude, so their effect is to replace open streams on the surface with underground ones.Other than that or the occasional collapse of a cave roof to create a doline on the ground above, they don't affect the land surface.
Underwater Spelunking
Underwater caves are natural formations in the ocean or a body of water that have been eroded or carved out by the movements of water over time. These caves can vary in size and shape and often contain unique ecosystems and marine life. Some underwater caves are popular destinations for divers due to their beauty and diversity of marine species.
No life.
how do caves form
== ==
No, sorry there isn't.
no they live in rivers
You can't.
In the underwater sealed cave and in the three regi caves
yes they do but they are born in underwater caves.
Deep Sea Detectives - 2003 Secret Underwater Caves 2-9 was released on: USA: 19 July 2004