Four times bigger and three times deeper than the birds' former pool, the new watering hole – opened in 2011– is the country's largest ever penguin pool. It houses nearly 150 Macaroni and Humboldt penguins. As well as the always popular feeding-time spectacle, visitors can see the penguins up-close through new underwater viewing areas. Highlighting ZSL's climate change work in Antarctica is a replica field station and interactive game. 'Penguin Beach LIve' (11.30am & 2.30pm daily) is an opportunity to watch the penguins being fed. Also available are 20-minute 'Meet the Penguins' encounters (2.45 daily; £30 Mon-Fri, £45 Sat, Sun & bank hols).