J Walter Thompson has scooped the 2m account for Chessington World of Adventures, the UK’s second-biggest theme park after Alton Towers. JWT beat EURO RSCG Wnek Gosper in the final stages of the two-month review of the business, previously held by Roose & Partners. BDDP-GGT and the Square were earlier on the shortlist. Chris Welch, head of marketing at Chessington, says: “JWT has delivered what we believe is an excellent creative route, built on sound strategic thinking and lots of fun.” The new campaign, which will run on TV and radio, breaks in April, following the start of the season in March. Ads will support the launch of the park’s newest ride, “The Rattlesnake”, and will be aimed in particular at the core target market of ten- to 15-year-olds.