Rotorua fun - at agroventures fun park; recumbant monorail bike track.
http://www.shweeb.co.nz

Two bikes on inter-locking tracks, running a race/timed 3 laps.
Candidate for a hot lap challenge perhaps? Record appears to be 55 seconds - I managed 65 seconds after slipping of the pedals a few times.

Bit of fun whilst in Rotorua if you're not on the MTB tracks...