A small number of species have lost the ability to pump water through their gills and must swim without rest.

He said 60,000 people swam with dolphins at the park last year without harm to animals or humans.

Two days later I was so exhausted she had to go swimming without me.

Nobody ought to go swimming without somebody else around, but sometimes it seems like everybody does it.

There are lots of places where you can swim without sauna in Finland during winter.

Edward swam along with me, a distorted white companion in a world without gravity or wind.

Do not swim in pools or at beaches without lifeguards.

"We can swim though without suits if you like," Catherine said to the girl.

The American guy has been swimming for at least an hour without them.