More than 37,000 square feet of retail space at The Hill will soon be transformed into a state-of-the-art climbing studio. El Cap, one of the largest operators of indoor climbing facilities, has announced plans to bring two Planet Granite studios to Dallas–both opening 2020–one in the former Treehouse and Candytopia location at The Hill, 8021 Walnut Hill Lane, and the other in the Design District at a new warehouse being built at 101-135 Glass St., at the corner of Levee Stre