Drinks, dinner, and dancing on the beach!
The reception is about a 10 minute walk from the ceremony. The sidewalk is a little bumpy so I would wear somewhat comfortable shoes if you plan to walk (you'll probably be taking them off once we get to the beach, anyway). You can also take a cab for around $100 pesos ($5 USD). Dinner will be a traditional Mexican buffet.

Attire: Festive Attire! Whatever you feel good in and can hit the dance floor in.