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We are asked this question often. When is it safe to fly? If I book a liveaboard that ends on Friday, can I fly on Saturday? If I make a dive on Monday morning can I fly Monday evening? Now, please remember that the question is covered in any beginners (Open Water) diving course. Only thing is, that the recommendations do change, and there are different numbers thrown about - 12 hours? 24 hours? 8 hours? And if you have forgotten this, it might be a good idea to do a refresher course! Here's the current recommendations from PADI and DAN:
- Single dives - A minimum pre-flight surface interval of 12 hours
- Repetitive dives or multiple days diving - A minimum pre-flight surface interval of 18 hours
The "single dives" recommendation does not affect us here really. All dive trips that we offer (day trips) include 2 or 3 dives, and liveaboards are all multiple day trips with 2 - 4 dives per day. So the figure you want to remember is 18 Hours. If are booking a typical 4 day liveaboard to the Similan Islands for example, the final dive of the final day is normally before lunch, after which the boat is cruising back to the mainland. So you are safe to fly by next morning. Some people prefer to wait 24 hours, it's up to you - if your schedule allows, why not have a full relaxing day off before flying out? Be sure to check the itinerary of any trip you book so you know when the last dive will be, and you can plan flights accordingly.
Note: Following these recommendations reduces DCS risk but does not 100% guarantee that a diver will avoid DCS. There are of course other factors involved. A major factor in a hot country like Thailand is dehydration - make sure you stay well hydrated when you are on a dive trip. You can read more here: Health and Fitness for Diving.
What about Diving after Flying?
There is no problem with diving after flying. There is no increased risk of DCS if you arrive on a flight and head straight to the ocean - DCS is caused by high concentration of Nitrogen in the blood after diving which can become supersaturated and form bubbles at lower pressures. Before you dive, you have a normal amount of Nitrogen in the blood. However, if you've taken a long haul flight, you may be dehydrated which is a factor is DCS. Make sure you drink plenty of non alcoholic fluids on a long flight to prevent dehydration. There is also a tendency for people to arrive in a hot country and head straight to the bar for a cold one. Please remember that alcohol contributes to dehydration, so take it easy on the beers!
Travel and Diving Insurance
Our company insurance policy covers all divers booked by Sunrise Divers for trips in Thailand up to a certain limit. This covers treatment for decompression sickness or any accident that may occur on a dive trip. We do recommend that all divers have their own travel and medical insurance, as well as cancellation insurance. Our own insurance is only used if a guest has no insurance of their own. Be sure that your travel insurance policy covers scuba diving! However, prevention is better than cure, so dive safely, follow the rules, use tables and computers and stay healthy!
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