Popular Scuba Courses in Denver
Underwater Phantaseas: Scuba Training in the Denver Metro Area
Learning to dive in Colorado starts here. Underwater Phantaseas has been training Denver divers for more than 40 years, and we're one of only a handful of PADI 5 Star Instructor Development Centers in the region. That's the highest rating PADI gives, and we've held it for decades.
Get Certified or Go Further
We offer the full range of PADI courses, from Open Water Certification all the way to Divemaster and beyond. Want to stay down longer? Our PADI Enriched Air Nitrox Course teaches you to dive with higher-oxygen tanks, giving you more bottom time on every dive. Already certified? We run specialty courses, rescue diving, and advanced skills training for Denver-area divers who want to keep improving.
Everything You Need in One Place
Our dive shop carries scuba gear for every budget, from entry-level setups to top-of-the-line equipment. We also handle rentals, equipment servicing, and air fills. And if you're ready to dive somewhere with better visibility than Chatfield Reservoir, we organize dive travel trips to destinations worldwide.
Taught by Divers Who Actually Dive
Our instructors dive regularly, travel, and stay current on training methods. Small class sizes mean you get real attention in the pool and open water, not just a quick sign-off.
If you're ready to get certified, gear up, or plan your next dive trip, Denver has had one go-to dive center since 1983. Come see us.
Dive Travel
Become a PADI Diver
Gear & service
Colorado Advantage
PADI Scuba Certification Courses for Every Level
We offer a complete lineup of PADI scuba certification courses, making it easy to progress at your own pace. Beginners often start with the PADI Open Water Diver course, which introduces essential skills, equipment use, and dive theory. From there, many divers continue into PADI Advanced Open Water to expand depth limits and gain experience in specialty dives.
For those seeking greater self-reliance and awareness, the PADI Rescue Diver course focuses on problem prevention and emergency response. We also offer Emergency First Response training, which covers CPR and first aid skills valuable both in and out of the water.
Divers returning after time away often benefit from our PADI ReActivate course, designed to refresh skills and rebuild confidence. We also provide PADI Discover Scuba experiences, snorkeling courses, scuba birthday parties, and private learning options that allow you to complete academics on your schedule.
Get Certified Advanced Open Water Ask about the right path
Specialty Courses Tailored to Mountain and Travel Diving
One of the strengths of Underwater Phantaseas is the wide range of specialty courses we offer. These courses allow divers to develop specific skills and explore areas of interest. Popular options include Enriched Air Nitrox, Deep Diver, Wreck Diver, Drysuit, and Project AWARE environmental courses.
We also offer Altitude Diver training, which is a must for Colorado-based divers. Understanding the affects of altitude on planning and safety is critical when diving in mountain lakes, or preparing for travel after high-altitude living.
Professional Scuba Training and Career Paths
For divers who want to take their passion further, we offer professional-level scuba training. As a PADI 5 Star Instructor Development Center, we guide candidates through Divemaster training and Instructor development programs. These courses are ideal for those interested in leadership, education, or a career in the dive industry.
Turn your love for diving into a career!
A Full-Service Dive Center in Lakewood
Underwater Phantaseas is more than a training facility. We are a full-service dive center supporting every aspect of your diving journey. Our dive shop offers scuba gear sales from trusted brands, including masks, fins, wetsuits, BCDs, regulators, dive computers, torches, and accessories.
We also provide equipment rental for scuba and snorkeling, making it easy to train or travel without committing to full gear purchases right away. Our onsite, certified technician performs equipment servicing and annual inspections on major brands, helping ensure your gear remains safe and reliable.
Air fills and expert advice are always available, and our staff takes the time to help you choose equipment that fits properly and performs well in the environments you plan to dive.
Scuba Equipment Sales Scuba Rental Equipment Scuba Equipment Service Air Fills
