Monty Halls goes back to his marine biologist roots as he studies whales and dolphins off the spectacular west coast of Ireland. This week his mission is to track dolphins in the bay using sonar technology to record the whistles and clicks they use to communicate with each other. He also visits Inishturk, one of Ireland's most remote inhabited islands, to recruit the seven pupils of the island school as whale and dolphin watchers. He also has a magical underwater encounter with seals and throws his first party for the locals. (From the UK) (Documentary Series) (Part 3 of 6) G CC