Thanks to the generosity of dear friends, my family gets to vacation on Isle of Palms every summer. If you follow the “Naturalist’s Corner” regularly, you’ve seen accounts of these expeditions — maybe about “pluff mud,” “gourd heads,” “sister island,” etc. Every year it’s a wonderful trip, and this year was no different. Four-and-a-half days flew by in the blink of an eye. There were tried-and-true adventures, new adventures and one mild curiosity.