DVD_WorldsToughestFixes[DVD: National Geographic – 2010 – 50 mins]. At Holiday World (Santa Claus, Indiana) building the world’s longest water roller coaster – the Wildebeest – is like assembling an enormous 3-D jigsaw puzzle. The Wildebeest is fitted with magnetic motors that enable the carts to float on air. After assembling the towers, supporting platforms and track, some last minute troubles threaten the Wildebeest’s uphill climb. Will the Wildebeest be ready on time? ANDY SHINE SAYS: Maintenance of the Voyage roller coaster is used as a filler for what would otherwise be a much shorter programme. I thought the insight into magnetic levitation (MagLev) principles was interesting. Add a staged malfunction to introduce ‘tension,’ and voila! Another formulaic National Geographic programme. ANDY SHINE’S RATING: Good.