Searching for the perfect birthday gift

Kia ora all.

My husband’s 40th birthday is coming up in August and I would love to treat him to something special. He absolutely loves gold panning and has a small sluice. He has had a go at most of the free claim sites in our area (Otago). For his birthday I would love to treat him to a opportunity to pan somewhere he hasn’t before. If anyone has a private claim that they would be willing to let him pan on for a day, or even a few hours I would love to hear from you. I obviously would be happy to pay for this. In Otago would be ideal but happy to travel outside our area if needed.