I have three hours at the CHC airport between 11:10 am and 2:40 pm when my shuttle picks me up to head over the alps. I will have luggage from an international flight with me. I will need to get groceries/food supplies, but am probably going to wait until Greymouth to do that; however if there's somewhere feasible around CHC would be up for spending some time at supermarket. Otherwise, any suggestions about how to best use that time? I'll be restless just having flown in from USA to AUCK and then after a short night's motel sleep from AUCK to CHC. Thanks! On a small budget, but a little wiggle room if something is worthwhile in the airport area.