Swimming to the desert sky

It's weird having to dress warm to go swimming but such is the nature of Milliways where one has to walk through Scottish Fall rains to get to Caribbean warm waters. Thalia's carrying the basket this time and she's loaded it with goodies both from her time (Cheetos, rice candy, etc.) and Williams (sarsaparilla, apple pie, etc.). Beneath her warm clothes she's elected to go with a simple one piece black suit and she wonders what swimwear William's opted for.