When I was about 8, I spent a week in a condo at the beach with a cousin, aunt and uncle. We swam in both the pool and the ocean for hours a day, saw wild dolphins, and I ate shark, scallops, and clams for the first time. We went looking for sand dollars at another beach one day, and our feet were stained yellow from there being so many.
My aunt died and my cousin and I don't speak anymore because of some awful family stuff, but that was one of my favorite memories ever.