All divers should use at least some signalling devices in case they lose their dive-boat - John Bantin evaluates a selection of items that will do the job more...

Need some affordable gift ideas for diving friends and family? Look no further - we've got an idea for every day of December until it's time for the unwrapping to start! more...

A major report on surface marker aids for divers has been carried out for the Health & Safety Executive by Heriot-Watt University. Alister Wallbank explains how his team came up with its findings - and why yellow is the colour if you want to be conspicuous at sea. more...

As rebreather use continues to grow, open-circuit divers need at least an awareness of how these units work. After all, you may find yourself buddying a rebreather diver, or be in a position to help in an emergency. John Liddiard fills in the gaps more...