Now that he's found this beach, there's possibly not a thing in the world that'll drag him away from it. He is tired to fuck of shitty Scottish weather - but this. This is perfect.
...possibly even more perfect is wandering on to it and discovering a prone Fiona, her bikini unfastened, doing exactly what he was planning to. Of course, given their last conversation, 'perfect' could possibly turn into 'perfect nightmare' after a few minutes but he's willing to take his chances.
'Need some sun cream on your back?' he asks, slouching next to her with a smirk.