You have 24 hours to make as many contacts as you can but what is different here and what you need to take into account, is you need to move your station after ever 5 contacts for a particular distance depending on how you move. This applies to RaDAR moving stations only. You may want to take part as a fixed RaDAR station or field station. Your choice!
Don't forget you need to think of hydration and food for energy, especially for the "on foot" operators. The South African Radio League's contest manual spells out the challenge quite nicely. Please see page 34 of the attached link.