http://boyslife.org/explorers-club/explorers-club-giveaway/
ages 6-17
5. Prizes and Odds of Winning: One (1) winner will receive the grand-prize and 10 runners-up will receive a second-place prize. Grand Prize: Trip for winner plus up to two family members to the National Geographic headquarters in Washington, D.C., to attend the 2018 Explorers Symposium in June. Prize includes round-trip airfare from major airport nearest to winner’s home to Washington, D.C., three nights at a hotel, some meals and entertainment, plus $100 per diem for food and travel expenses. Prize is not transferable. Exact dates in June 2018 to be determined. Estimated value of grand prize is $2,500. Second-Place Prize: A National Geographic branded backpack, a National Geographic Kids branded T-shirt, and set of books, including the Ultimate Explorer Guide and six (6) Ultimate Explorer Field Guides. Estimated value of each second-place prize is $135. Prizes are not transferable. Prizes are provided by National Geographic. No substitution, cash redemption or transfer of prizes is permitted except at Sponsor’s sole discretion. If a prize, or any portion thereof, cannot be awarded for any reason, Sponsor reserves the right to substitute a prize of equal or greater value. All federal, state, and local taxes, and all other costs associated with acceptance or use of the prizes, are the sole responsibility of the winners. Odds of winning any prize depend on the number of entries received.