Term

What is safety stop in diving?

A safety stop is a voluntary pause at about 5 metres for 3 minutes near the end of the ascent. It gives your body extra time to release dissolved nitrogen and slows the riskiest part of the climb to the surface.

A safety stop is a voluntary pause near the end of the ascent, typically 3 minutes at 5 metres — agencies recommend 3 to 5 minutes at 5–6 metres. We treat it as part of essentially every dive: you level off just below the surface, give your body time to off-gas, then finish the ascent slowly.

Why stop when you could just surface?

Two reasons. First, margin: your tissues are still releasing dissolved nitrogen, and a few extra minutes at shallow depth let more of it leave before you surface. Second, it breaks up the final stretch of the ascent, where relative pressure change is fastest — from 5 metres to the surface, ambient pressure drops by a full third.

Is it the same as a decompression stop?

No. A safety stop is recommended even when you are well inside your no-decompression limit; a decompression stop is obligatory, and skipping one carries a real risk of decompression sickness. The safety stop is cheap insurance; the deco stop is a debt you must pay.

What does a good safety stop look like?

Calm hovering. Holding 5 metres for 3 minutes takes real buoyancy control — steady breathing and small adjustments, not a fight with the depth gauge. Watch your computer rather than guessing, use a reference like the anchor line when there is current, and stay within reach of your buddy.