Thousands of scuba divers and medical professionals around the world rely on Divers Alert Network (DAN) for medical advice. If you’re already a DAN Member, thank you. Your DAN membership dues help pay for these important resources.
We’ll talk about the other great benefits included with DAN membership at the end of this article. But first, here are some helpful online resources for divers. Please consider bookmarking this page for future reference!
Free Resources From DAN
Here are some of the most popular articles written by DAN. If you’re headed out on a liveaboard or to a remote dive destination, it’s worth printing or screenshotting these helpful resources.

- How To Manage Ear Troubles
- Prevention & Treatment of Marine Creature Bites
- 5 Mistakes Divers Make: And How To Avoid Them
- Simple Tips for Preventing Seasickness
- 10 Tips for Easy Equalizing
DAN also has detailed guides for scuba divers who want to learn more about:
- Decompression Sickness
- Ears & Diving
- Hazardous Marine Life
- The Heart & Diving
- 13 Ways To Run Out of Air & How Not To
- How To Equalize Like a Pro
- Dive Trip Planning Tips
Free Info for Diving With Asthma, Diabetes, Hypertension or Other Conditions
DAN has an online library of how various medical conditions may (or may not) affect someone’s ability to scuba dive. The information is written by medical professionals for divers, dive operators and physicians.
A few examples include:
- Abdominal Surgery
- Anxiety: Is It a Contraindication to Diving?
- Asthma and Diving
- Coronary Artery Bypass Grafts
- Diabetes and Diving
- Hypertension
If your local doctor isn’t familiar with diving physiology, DAN also has a worldwide network of doctors who serve the diving public.
Test Your Knowledge, Take a Free Quiz
DAN has several short quizzes that can help you test your knowledge of CPR and First Aid procedures, diving-related ear injuries and exotic marine life. Each quiz takes less than a minute, and you’ll learn (or relearn) helpful information.
- CPR & First Aid
- Cardiovascular Health & Diving
- Exotic Marine Life
- Ear Injuries, Diseases & Conditions
- Ear Equalization
PADI Club Members Get a Free DAN Prepared Diver Course
During the online DAN Prepared Diver course, divers learn and review information to help maintain diver competence and confidence by refreshing their dive safety knowledge. Many of the resources discussed above are incorporated in the course materials. Divers should consider taking this informative, quick course every year.
Why Every Diver Should Be a DAN Member
PADI recommends every diver join DAN. For a small annual fee, you get a surprising number of benefits, including emergency medical transportation and travel assistance.
In addition to the free resources above, DAN also provides:
Because DAN is a non-profit organization, income from DAN membership dues and the programs above is reinvested in:
- Affordable emergency oxygen equipment
- Medical research and education
- A 24-hour diver emergency hotline
- Staff training and equipment upgrades for hyperbaric facilities



