Big passes are $15 a day, $5 shoe rental, $3 harness rental ($23.00) & Littles is FREE, but would still need to pay the rental fee ($8). Bigs and Littles can bring their gear to dismiss the rental fee. To receive the discount, please present your BBBS Match Card at the front desk. If you do not have this card, please contact your Match Support Specialist. For kids under 18 to climb, RoKC needs to have parents/guardians sign a waiver ahead of time.