The London Diving Chamber has released a new iPhone app that will find the nearest decompression chamber wherever you are in the world.
The app also gives you advice and easy-to-follow instructions on managing a diving emergency, a personal logbook and a practical checklist you can use before you go diving.
It has an A-Z of diving medicine aimed at answering your questions about diving, health and decompression illness - and if your question can't be answered by this feature, you can email the London Diving Chamber through your iPhone. The app is available to download free from iTunes.