It sounds like a perfect break for Jack and Ianto after how busy they were. It's also nice that alien beaches are mostly similar to the ones on Earth. I can just imagine what that fluffy sand feels like.
Author's Response: Fluffy sand is the greatest delight for Ianto, it's so comfy. He's used to the usual grittiness but this is so much more appealing. They'll have a wonderful vacation. Thank you!