Ocean power in New Zealand speed. Because the tidal speed doubles, eight times more tidal power can be produced at spring tides than at neap tides. The entrance to Kaipara Harbour, one of the largest harbours in the world, is a channel to the Tasman Sea. It narrows to a width of , and is over deep in parts. On average, Kaipara tides rise and fall . At high tide, nearly 1000 square kilometres are flooded. Spring tidal flows reach 9 km/h (5 knots) in the entrance channel and move 1,990 million cubic metres per tidal movement or 7,960 million cubic meters daily. In 2011,
What to Do When You Are Dead followed by two US tours in February 2005. "What to Do When You Are Dead" was released on February 22 through independent label Equal Vision Records. Following a couple of US tours in April and May 2005, "Car Underwater" was released as a radio single. The group performed on the Warped Tour, before touring across the US in September and November. Later in November, a music video was released for "The Truth About Heaven", followed by a UK tour in December. In early 2006, the group went on a three-month headlining US tour, before appearing on Warped Tour again. "What