Hi Stacie, Congrats on your engagement!!!! There are several great venues for +100 guests, here are a few you might want to look into: Rosewood Mayakoba. Nestled in the intimacy of the jungle with super amenities, tranquil ambiance, rivers and golf course. Amanda + Ryan. 125 guests Ak'iin Beach Club Tulum. Beautiful beach and has many eco-boutique hotels nearby where your guests can stay Karen + Amando. 150 guests Xcaret Eco-Park. A few minute drive from Playa del Carmen, this is a magnificent location!! Savi + Robert. 150 guests Feel free to send me a PM for more ideas and recommendations. Happy Planning!!