After driving for 2 hours, and sweating out the previous night's cervesas walking around the ruins of Chichen Itza, the breathtaking beauty of Ik Kil Cenote is a welcome respite from the sweltering heat of the afternoon. Just a 5 minute drive from the ruins, and with a reasonable entry of just $7, the swimming hole is an easy decision. You can take a leap off of a 20 foot ledge into the welcoming water, or rent a life vest for a few dollars to soak up the surroundings. Take the time, take the plunge. You'll be glad you did.