Watch Doctor Who season 6 episode 3 online with an episode title "The Curse of the Black Spot" which air date is May 7, 2011 and it seems that the 11th Doctor will be visiting the creatures of the sea as he visits the Atlantic Ocean in earth in the 17th century to face a formidable foe which are "The Siren"
The following shows the synopsis of this Doctor 6x3 episode:
The Doctor answers a distress signal and materializes aboard a becalmed 17th-century pirate ship. A mysterious sea creature, the Siren, stalks any injured crew, picking them off one by one. When Rory is scratched, he becomes the creature's next victim. Meanwhile, the TARDIS departs on its own, leaving the Doctor and Amy stranded with the implacable Captain Avery, whose desire for treasure may prove his undoing.Well, you might see that the motif of this episode is like a Pirates of the Caribbean feel, right? Well, its kinda specially the "The Curse of the Black Pearl." Just watch it will you here at Telepisodes.com and see for yourself on what is to expect from Doctor Who.