On one of the days my parents and I rented a car and took a two hour drive to Chichen Itza to see the Mayan ruins. We hired a tour guide who gave us a 1.5 hour tour in Spanish. It was so hot that day, especially because we were more inland, that by the end of the tour I was completely dehydrated and zoning out. Great experience, nonetheless!
It was my first time in Cancun, Mexico and I absolutely loved it! Aside from the bug bites, of course. It was very humid and walking outside after an air conditioned room was like walking into Bikram yoga. My parents, sister, brother in-law, and nieces all stayed at El Cid Vacations Club resort which was a few miles south of downtown Cancun along the Mayan Riviera. I will definitely be going back!