Hate to bump my own thread, but the money is still just sitting there.
You should advertise it in the local newspapers 
I would be happy to go to a trip to the location but to get there and to get home would cost much more than the value of the bitcoins in the wallet (maybe if the price of bitcoin will rise again around $20.000 there would be more interest finding that wallet...)
However, I will not be moving this for a year. If the price goes to $40K the game is still on. It would be funny if the price did skyrocket and someone got a free vacation to Africa. But even if it goes to a million... So be it.
Yeah, back when it was $11,xxx I was debating on traveling there, I looked at tickets and it was going to cost me around $1,500 and I was thinking if it remains in the 11k range I'd go because the flight would cost me $400 out of pocket after finding the btc, and I could enjoy an African vacation on the cheap and make awesome memories because I'd definitely do a lot of exploring around different countries, but since it's fallen to the $6,xxx levels I don't think it's as feasible right now but still loving this idea and I do hope someone finds it and has an awesome story to tell!
Rodeo I do think it's people like you that are trying to keep the community active that will help bitcoin in the long run, I think what you're trying to do now is the equivalent of what Gavin did in the early days with the first faucet that gave out 5 btc for free, getting people into it and new interest
I would love to go to Africa, or for a fact, I would love to travel anywhere. Even with cheap flights now though, vacationing with a family is too expensive. I could probably make it alone, but then someone has to take care of my family as they are old and need daily care. I think it's fine that it can and should sit there until someone is willing to make the trip.
Perhaps as OP says, maybe it reaches a million and then I myself can even consider such a trip. Not so much about the prize money right now, but who knows, one day?