1. Better Half - We had to look it up, but the Ironman 70.3 championship is the half ironman (World Triathlon counts the swim, bike, run in miles, not metric). Superb bodies swim the Viaduct, ride the harbour bridge, run two laps of the waterfront. Check Auckland Transport for the road closures in the area before you head out.
• Waterfront wide
• Sunday, 6.15am-3.30pm
2. Tyrannosaurus Heck - It's been a long time since dinosaurs roamed our turf, but this weekend, the folks at Butterfly Creek have reintroduced some 40 dinosaurs - roaring animatronics that are scarily real, including a massive tyrannosaurus rex, triceratops and diplodocus. Check out the fossil skeleton replicas, take part in dinosaur activities, win prizes and more. Scaaaary.
• Open 7 days
• 9am to 5.30pm
• Adults $27, kids $16, under 3s free
3. Shark attack - We know, we know, it's been a summer of sharks here at the Herald. But it's time to sort the facts from the fallacies at Kelly Tarlton's new state-of-the-art interactive shark mission zone. Track these creatures in the wild, follow a quest trail and view the sharks in Australasia's largest display colony.