The Doctor frowned, but it was one of concern more than anything else. "Then you'd best be careful." He felt silly for saying it as soon as it came out. As if Gabriel wouldn't have figured that part out on his own. "Stay hydrated, keep your skin protected, and you may want to keep those goggles handy in case the sand starts getting blown about too much." He lifted his own pair up to put them on, settling them on his brow for the time being.