Know that you're going to make noise, and its best not to have to hold back during labor. Obviously it is best to be in a comfortable environment likeyour own home. No lights or flashes are needed. It could be more kind to a newborn coming out of complete darkness. Also audio needs less of a set up, and people won't have to think about if they are in the way.
Some people have water births in a hot tub or a bathtub.
Babies can be born underwater, because they are still connected to the placenta and they haven't taken their first gasp of air. The placenta is a tree of life, giving the child oxygen. Later the rest rots off from the newborn's navel. I swabbed on hydrogen peroxide around the base for the week following the labor to prevent infection. A lotus birth is when the cord between the baby and the placenta is not cut.