Two Black Diamond tickets for Bolder Indoor Adventure Park in Grand Prairie, TX. Adventure Park is in close proximity to Epic Waters Indoor Water Park also in Grand Prairie, TX. Black Diamond passes are the second-to-highest tier and allow access to all activities except Via Ferrata and Free Fall. Peak tickets are typically $49.99 per pass, but selling two for the price of one at $50 for the pair. Indoor activities mean that the parks can be enjoyed year round!