The Tulum ruins get busy during Spring Break, but you won’t see the usual crowds of drunken co-eds. The resort town is no longer Mexico’s hidden gem but that has only made it more interesting. Playa Paraíso beach is still free so you can save money by going there. At night, Playa del Carmen turns into a bustling entertainment hotspot. Make sure you check out the Mayan ruins, but rent a car and drive to make the most of the trip. Also, consider taking a canal trip through the Sian Ka'an Biosphere Reserve.