Boil beets by submerging them in bubbling hot water and letting them cook for 30 to 60 minutes, depending on their size.
You can find series of lessons, starting with basic submerging and floating and working on up to techniques for the forward crawl and breaststroke.
If you are using frozen lobster tails, you must thaw them first by placing them in a plastic bag and submerging them in warm water.
Place the stocking in the water, submerging the entire garment in the water.
I can watch hippos for ages, playing their sinister, slow-motion, peek-a-boo game of silently submerging and reappearing.