Matt and Ellie are in Essex where Matt jumps aboard the Pioneer, a fully restored Essex oyster boat. He learns about its maritime past whilst some rarely seen archive gives us a flavour of the county's oyster fishing heyday. Matt then meets a group of young people learning the skills to build racing gigs which are small fast rowing boats built for competition and Matt is put through his paces in one of these gigs out on the open sea. Ellie is at the country's only nature reserve managed specifically for dragonflies, where she gets up close to these highly coloured and fascinating insects. She then travels to Hamford Water, were the creeks and inlets are home to an unusual colony of common seals - they're bright red!