Bikes can go anywhere - even in the water.
Floating around Pilot Bay yesterday was the Akwakat - an inflatable pontoon which can be attached to a mountainbike and used to pedal over a body of water.
Invented by Hamilton's Neil Vanner, the Akwakat water-bike kit attaches to a bike after the wheels have been removed.
Mr Vanner said the kit had been sold in 13 countries through the internet and it was another way for cycling enthusiasts to make the most of their bikes.
"It's really for existing mountainbike owners, it's like an accessory for your bike. It's just another aspect to enjoying your bike, being able to go and cycle around boats. It does feel like it would tip very easily but it's actually quite stable."