Cerulean Cape there's your obstacle.

Her joy at his acceptance pleased him, making him feel more at ease with the decision. If nothing else, he'd get some attention for a couple of days and a spotlight under which to brag about his accomplishments during his travels. Those were always nice, even if the arrangement did come with its risks. Ah well, he was good at avoiding things when he needed to. 

"Nothing in particular," he answered, "The views are pretty cool, and mountain climbing in general is fun. Hunting on mountainsides is fun too--it's a cool challenge. Oh, speaking of which..." Turning, he looked back at the crab that had slowly begun to scuttle away behind his back, "D'you have any idea what the fuck this thing is?" he asked Maia, not taking his eyes from the bizarre alien rock thing.