Tulum is a great day trip from Puerto Morelos for ancient Mayan ruins, lush mangrove jungles, and upmarket bars and restaurants. It's 97 km/60 miles from Puerto Morelos, which is approximately a 90-minute drive.

El Castillo is part of a 1,000-year-old UNESCO World Heritage Site that includes Chichen-Itza. It's such an important historic monument, and it sits in a beautiful coastal location. The entrance fee is currently 365 pesos, and it's open 9:00 AM-5:00 PM daily.

Otherwise, check out Tulum's beaches (like Playa Paraiso) and cool cafes.