This full-day trip was one of the highlights of my time in Mexico but it was also hot, active, and a bit unpredictable. Between exploring the ruins at Chichén Itzá, swimming in a cenote, and strolling the charming streets of Valladolid, I was really glad I packed smart. These 12 items made a huge difference in my comfort and enjoyment. Here’s what I brought and why I’d recommend each one to you.