What's the difference between swimming in the pool and swimming in the sea?

Swimming in the pool seems safer because the pool has vital signs and there are water depth indicators, so people are aware of the dangerous zones. Moreover, the water in the pool contains chemicals like chlorine to keep it clean, but it can also cause irritation for some people with sensitive skin. On the other [...]

Swimming in the pool seems safer because most of the pool has white tiles and there are water depth indicators, so people are aware of the dangerous zones. Moreover, the water in the pool contains chemicals like chlorine to keep it clean, but it can also cause irritation for some people with sensitive skin. On [...]