The swim test is a gate, not a lesson. It happens before instruction begins, and most programmes will not let you continue the course if you cannot complete it. It is also the single most common reason candidates do not certify, and it is almost entirely preventable with four weeks of preparation.
Three events, usually run back to back.
The three events
1. A continuous 300-yard swim
Front crawl and breaststroke, in any combination, without stopping. Goggles are normally permitted. Resting on the wall, standing, or holding the lane rope ends the attempt.
There is usually no time limit. This surprises people, and it should change how you train for it: you are being assessed on whether you can keep moving, not on speed. Breaststroke is your recovery stroke. Use it.
Three hundred yards is 12 lengths of a 25-yard pool, or 6 lengths of a 50-metre pool (274 metres, so most programmes round to 300 metres).
2. Two minutes treading water, legs only
Hands tucked under the armpits or held out of the water. Two minutes. This is the event candidates underestimate most, because in normal swimming nobody ever tests leg-only buoyancy for a sustained period.
The technique that works is the eggbeater kick, an alternating circular motion of each leg, rather than a scissor or flutter kick. Flutter kicking will hold you up for about forty seconds and then your legs will burn out.
3. The brick retrieval, inside 1 minute 40 seconds
Swim to a 10-lb brick submerged in 7 to 10 feet of water, surface dive, retrieve it, and return to the start swimming on your back with both hands on the brick and your face out of the water. Then exit the pool without using the ladder, still holding the brick.
This is the only timed event, and the time is generous if your surface dive is efficient and brutal if it is not. Most lost seconds are spent failing to get deep enough on the first attempt.
Where candidates actually fail
| Event | The usual cause | The fix |
|---|---|---|
| 300 yards | Starting too fast, then stopping at the wall to recover | Swim the first 100 slower than feels right. Switch to breaststroke before you need to, not after. |
| Treading | Flutter kicking, and rising too high out of the water | Eggbeater. Keep your mouth just clear of the surface, not your shoulders. |
| Brick | A shallow surface dive that does not reach the bottom | Tuck, roll vertical, and drive your legs straight up out of the water. The weight of your legs in air is what pushes you down. |
| Brick return | Holding the brick on the chest, which sinks the face | Hold it low, at the waist or hips, and kick harder than feels necessary. |
| Exit | Running out of grip strength | Practise the pool-side exit with the brick. It is a skill, not a formality. |
A four-week preparation plan
Three sessions a week. This assumes you can already swim 100 yards comfortably. If you cannot, start earlier rather than compressing this.
Week 1: build the base
- Session A: 6 x 50 yards front crawl, 30 seconds rest. Then 4 x 30 seconds treading, eggbeater, 30 seconds rest.
- Session B: 4 x 75 yards alternating crawl and breaststroke by length. Then surface dive practice in the deep end, 10 dives, touching the bottom each time.
- Session C: 200 yards continuous, any stroke, no stopping. Then 3 x 45 seconds treading.
Week 2: extend
- Session A: 8 x 50 yards, 20 seconds rest. Then 3 x 60 seconds treading.
- Session B: 250 yards continuous. Then 10 surface dives retrieving an object from the deepest water available.
- Session C: 4 x 100 yards, 30 seconds rest. Then 2 x 90 seconds treading.
Week 3: event practice
- Session A: 300 yards continuous, untimed. Just finish it.
- Session B: Full brick retrieval if you can borrow one, or a weighted object of similar mass. Time yourself. Repeat 5 times with full rest.
- Session C: 300 yards continuous, then 2 minutes treading immediately after. This is the combination that catches people.
Week 4: rehearse and taper
- Session A: Full test, all three events, in order, with the rest interval your programme uses.
- Session B: Weak event only. Whichever one you were slowest or least comfortable on.
- Session C: Easy 200 yards and 2 minutes treading. Do not train hard within two days of the test.
On the day
- Eat two to three hours beforehand. Not immediately before, not nothing.
- Bring two pairs of goggles. Strap failures happen.
- Wear a suit you have swum laps in. A new suit on test day is an avoidable risk.
- Warm up if you are allowed to. Cold shoulders on a 300-yard swim is a bad start.
- Ask whether the three events run continuously or with rest, before you start.
Frequently asked questions
Is there a time limit on the 300 yards? Usually not. Confirm with your programme, because a few impose one.
Can I use goggles for the brick retrieval? Often not, on the reasoning that a real submerged casualty will not wait for you to find your goggles. Practise opening your eyes underwater.
What if I fail? Most programmes allow a retest, sometimes the same day, sometimes at the next session. You normally cannot start the course until you pass.
Do I need to swim with perfect technique? No. The test assesses capability, not form. Efficient beats pretty.
Is the test the same for everyone? The standard described here is widely used, but individual programmes vary the distance, the tread duration and the brick depth. Confirm the exact standard with the provider you book.