The speaker is lying awake at a campsite, trying to sleep but unable to. Cars pass by in the distance, and tomorrow they'll be at the beach, yet their mind keeps circling back to one thing: they love where they are and don't want to leave. The poem is built around a small puzzle, which the speaker finally answers in the last line. They're awake not because of worry or discomfort, but because sleeping means the trip moves closer to its end.
The mood is a mix of joy and a gentle ache. The speaker calls the place their "happy place" and says they might cry "of happiness," but there's also a sense of loss in the line about never being near it "ever again." The short, simple lines and plain rhymes feel like a restless mind speaking in the dark, repeating itself because the feeling is bigger than the words.