Straining his eyes away from the gem, Leander looked at the Doctor again and couldn't help but raise an eyebrow at the odd question. Was he planning on going for a swim now? Maybe to soothe his back? The possibilities were endless - there was nothing not strange about this fellow. He caught himself wondering if the Doctor was a foreigner who'd got hopelessly lost.

Leander tried hard to make a connection between what his new acquaintance had just asked and what the situation suggested he needed. "Well, not exactly. But I believe there's an ancient crater full of water just 200 metres from here. Why would you even ask this? Is it of importance?"