The Afterwork Navigation League event at the Ngaio Gorge in Wellington is one of a series of 3 hour rogaines in the evenings. Explore the gem that is Ngaio Gorge and its surrounding suburbs. These were initially designed as practice for longer events, but are perfectly good as ends in themselves.
These events are usually 3 hours, but occasionally might be shorter. Maps are available from 5:20pm, briefing 5:50pm, and rogaine from 6pm to 9pm. For locations further out these might be half an hour later. If you can't get there by then why worry - just rogaine for a shorter time. In fact if you want a shorter period tell the organiser and just do it!
3 hour off road rogaine