No certification? No problem! With our Discover Scuba Diving experience, we offer same-day dives for beginners. Our instructors will teach you the basics and guide you safely through your first underwater adventure. Learn more about Discover Scuba Diving

If it’s been 6–12 months, our Refresher Shore Dive is ideal to get you comfortable again. If it’s been over a year, we recommend the PADI ReActivate programme. Both options are designed to help you feel safe and confident before heading out to Cozumel’s reefs.

Our dive trips include everything for a comfortable and fun day on the water:

• Weights and tanks
• Professional dive guide
• Water, snacks, and towels
• Fully equipped boats with oxygen, radio, and safety gear
• Relaxed and friendly concierge-style service
  

Absolutely! We specialize in private diving experiences in Cozumel—from romantic honeymoon dives to family trips and custom underwater photography tours. Let us know your vision and we’ll bring it to life.

Bring:

• A towel
• Reef-safe sunscreen (apply at least 1 hour before water entry)
• Sea sickness tablets if you’re prone to motion sickness
  
  We’ll handle the rest!
  

Cozumel offers amazing marine life year-round, but certain seasons bring unique highlights. From June to September, you can snorkel with whale sharks near Isla Mujeres. Bull shark season runs from November to February, when pregnant females visit the area. Turtles nest and hatch between May and October, and eagle rays are commonly seen from December to March. No matter when you visit, Cozumel’s reefs are always full of life!

• Summer: 27–30°C / 80–84°F
• Winter: 25–27°C / 77–80°F

Clear, warm, and inviting all year round!

Yes, the marine park has specific regulations to protect our reefs. These include:

• No touching or collecting marine life
• Use of reef-safe sunscreen only (apply 1 hour prior minimum before entering the water)
• No gloves, knives or sticks
• Buoyancy control required to avoid reef contact

Learn more about Marine Park rules here

Yes, we offer high-quality rental gear for divers who don’t have their own. Just let us know what you need.

Easy! Book dives and excursions directly on our website, or email us at millyunderwater@hotmail.com. Buying photos is instant—just pick, pay, and download.

Plans change—we get it. Cancel or reschedule up to 24 hours before your activity for a full refund. For more info, visit our Policies page.

Definitely. Our boats and instructors are great for first-time divers and beginners. Let us know your comfort level—we’ll make sure you feel safe and supported.

Yes, and we’d love that! Reviews help us grow. You’ll get a reminder after your dive or photo purchase, or you can leave one anytime on our website.

Yes! We regularly host cruise visitors. Let us know your port time and ship schedule, and we’ll recommend a dive trip that fits perfectly.

Yes! We offer private boats for groups—perfect for dive clubs, friends, or families. Customize your itinerary, dive times, and even snacks on board.

If you're staying in Cozumel's town center, taxis are easy to find. Once you arrive at Marina Fonatur/Asipona, a MillyUnderwater team member will greet you.

Yes, if your hotel has pier access, we can stop to pick you up on the way. Just let us know when you book!

Join us for a snorkeling trip to El Cielo, known for its starfish and crystal-clear waters. Or explore the island by renting a car or scooter to visit:

• Rastas, Chen Río & Playa Bonita beaches
• Tequila, chocolate & honey tour
• Iconic beach bars like Mescalito’s

Yes, our normal tanks are 80cf/12L, we also offer 100cf/15L for an extra fee, just let us know when you're booking

Yes, we offer Nitrox 32% or the desired mix to make your dives possible for an additional fee. Perfect for extended bottom time and less fatigue on repetitive dives.

Absolutely! We’ll assign a dedicated guide for each group so both snorkelers and divers enjoy a safe and exciting experience on the same boat.

Take an ADO bus or taxi from Cancun Airport to Playa del Carmen (approx. 45–60 minutes). Then, hop on the Cozumel ferry (30–40 minutes) with:

• Winjet Ferry
• Ultramar Ferry
• Xcaret Xailing Ferry
  

Yes! Here are our favorite relaxing stays for divers:

• Tamarindo Cozumel
• MayaCoba Boutique Hotel
• Mimi & Julen’s Airbnb
  

You can contact us through our contact page! We will be happy to assist you.

Cozumel is a world-class dive destination, renowned for deep wall drift dives and healthy coral reefs within the Arrecifes de Cozumel National Park. Highlights include Palancar Reefs, with swim-throughs and abundant marine life from beginner to advanced levels. Columbia Deep, a dramatic deep-wall site prized by advanced divers and the famous Santa Rosa Wall, known for stunning coral formations and vibrant species. For thrill-seekers, Punta Sur’s Devil’s Throat and Cathedral offer advanced swim-throughs and cave features, while sites like Yucab Reef, Las Palmas, and Paradise Reef deliver easy-entry, fish-rich dives ideal for photographers and relaxation. Whether you’re after deep adventure or shallow wonders, Cozumel consistently delivers exceptional underwater experiences.