I love the idea of a sea birth. I'm total water baby. The sea here is too cold though, only get to 14 C at it's hottest. Lots of our coast is also too polluted. But I'm surprised people seem to think all the oceans are dirty. Not true. Imagine having a private coastal pool in the tropics, sea temp of 30 C, wow that would just be incredible.
I'm surprised also at people saying their eyes sting in salt water. After all our eyes are always bathed in salt water. I find freshwater much more stingy and chlorinated is impossible!
Animals originate from the sea. Sea creatures are able to have salt water pass in and out if their bodies without issue. Internal bodily fluid have always been saline because of our marine origins. Freshwater fish had to evolve rather complicated systems to deal with the drop in salinity (see previous posts about osmosis
). Land animals had to evolve protective skin to prevent the body drying out. Saline is our natural state which is why foetuses grow in saline solution. I bet seawater is much nicer to birth in than fresh. I am jealous!