"There's the ocean, of course, but it's hard to filter the salt out. Plus it's risky the past few days."

He's about to go on, when he notices the wince. Hesitating, he waits politely to see if she's all right, and makes a small, sympathetic sound at the explanation. "Yes. It's obnoxious. We've speculated it's a pocket dimension, but I don't think we've come to any conclusions more useful than that. The last attempt to break through didn't end well."