FAQ
Common questions
How cold is too cold for open water swimming?
Most guides put 60°F (15°C) as the practical minimum for beginners without cold-water training. With a full wetsuit and neoprene cap, 55°F is manageable for short swims. Below 50°F is a specialized cold-water pursuit requiring dedicated acclimatization, not a beginner activity.
Do I need a wetsuit, or can I swim without one?
In water above 75°F you don't strictly need one, though the buoyancy still helps. Below 72°F, a wetsuit transitions from nice-to-have to essential safety gear. The cold shock response at 65°F or below can cause involuntary gasping and hyperventilation within seconds of immersion; a wetsuit significantly reduces this risk.
Is open water swimming dangerous?
Meaningfully more so than pool swimming, and much less so than most people fear if you take it seriously. The risks are cold shock, exhaustion, and disorientation. All three are managed by swimming with others, using a tow float, knowing your water temperature, and building distances gradually. Most accidents involve solo swimmers who overestimated their fitness in cold water.
What's the difference between a triathlon wetsuit and a surfing wetsuit?
Triathlon and open water wetsuits are cut for prone (horizontal) body position, use thin 1.5-3mm neoprene for flexibility, and are designed to be stripped off quickly. Surfing wetsuits are thicker (4-6mm), stiffer, and cut for standing and paddling. Surfing in a tri wetsuit is fine briefly; swimming laps in a surf wetsuit is exhausting.
How far should I swim on my first open water session?
Much shorter than you think: 200-400m is a good target even if you regularly swim 2km in a pool. Open water is harder: no lane lines, cold water costs energy, and navigation takes focus. Starting short and feeling good beats starting ambitious and panicking halfway across.
What is sighting, and how do I learn it?
Sighting is lifting your eyes just above the waterline every 8-10 strokes to spot a landmark and confirm your direction. Without it, most swimmers drift 20-30% further than the straight-line distance. Watch a 5-minute YouTube video on sighting technique before your first swim; it makes the session dramatically less frustrating.