Her underwater graces

(photo source)

Everything looks so graceful underwater, so peaceful. I'd love to try an underwater photo shoot sometime, but I'm not sure how I'd execute it. Forgive me for sounding amateur, but what type of equipment is needed for an underwater shoot?

P.S. The winner of the Flavanilla Jewelry giveaway is Ko of Toast and Nutella. Congrats girl! Please email me your postal address so that we can ship out your necklace!