Grnbox gym in Dalkeith | Facilities, hours & reviews Grnbox gym is a gym in Dalkeith, offering gym and fitness facilities, strength and cardio training, membership enquiries. Address: 23 Mayfield Industrial Estate, Dalkeith EH22 4ADOfficial website Things to do today Things to do tomorrow This weekend Free events Family events Kids activities in Edinburgh Live music in Edinburgh Live sports in Edinburgh Cinemas in Edinburgh Gyms in Edinburgh All Edinburgh events