There is a moment that most open water swimmers remember clearly. You are standing at the edge of a lake, or a beach, or a river bank, and you are about to swim somewhere that does not have lane lines, walls, or a clearly marked shallow end. It is thrilling and terrifying in roughly equal measure.
If that moment is coming up for you, this guide is here to help. Not to overwhelm you with warnings, but to set you up for a first experience that is safe, enjoyable, and leaves you wanting to come back.
Choosing the Right Spot
Your first open water swim is not the time for ambition. Save the dramatic sea cliffs and channel crossings for later. What you want is a spot that is:
- Calm and sheltered. A protected bay, a small lake, or a calm stretch of river. Avoid spots with significant wave action, strong currents, or boat traffic.
- Has a gradual entry. A sandy or gently sloping bottom lets you wade in at your own pace. Jumping off a dock into deep water on your first outing adds unnecessary stress.
- Lifeguarded, if possible. Designated swimming areas at beaches and lakes often have lifeguards on duty during peak hours. This is not about expecting trouble; it is about having a safety net while you build confidence.
- Familiar to other swimmers. If you can find a spot where local open water swimmers regularly go, even better. Popular spots are popular for a reason.
SwimPass lets you browse swim spots near you with details about conditions, spot type, and current SwimScore. Filtering for calm, beginner-friendly locations is a good place to start.
What to Bring
Open water swimming does not require a lot of gear, but a few items make a big difference.
Goggles are essential. You probably own a pair already from pool swimming. Tinted or mirrored lenses help in bright conditions. Clear lenses are better for overcast days or early mornings. If you are buying new ones, try them on for comfort before your swim day.
A bright swim cap. Neon orange, pink, or yellow. This is not about fashion. It is about being visible to boats, kayakers, and anyone watching from shore. Most open water swimming accidents involve swimmers who could not be seen. A $5 silicone cap is the cheapest safety equipment you will ever buy.
A tow float. This is the inflatable dry bag that clips to your waist and trails behind you on the surface. It serves three purposes: it makes you highly visible, it gives you something to rest on if you need a break, and it keeps your keys and phone dry. For a first-timer, a tow float offers genuine peace of mind.
Sunscreen. Waterproof, SPF 50+, applied generously 20 minutes before you get in. Open water swimming exposes more of your body to direct and reflected UV than almost any other outdoor activity.
A wetsuit (maybe). If water temperature is below about 65 degrees Fahrenheit (18 Celsius), a wetsuit adds warmth and buoyancy. For warmer water, it is optional. Many open water swimmers prefer swimming without one, but for a first swim in cooler water, the extra warmth and flotation help with confidence.
Warm clothes for after. You will cool down quickly after your swim, especially in cooler water. Bring a towel, warm layers, and a hot drink if you have a thermos. Post-swim warmth is not a luxury; it is part of managing your body's temperature response.
Arrive Early and Assess
Do not rush from the parking lot into the water. Give yourself time to settle in and read the conditions.
Spend five to ten minutes watching the water. Look for current patterns, wave behavior, and how other swimmers (if any) are moving. If you are swimming at a beach, learn to spot rip currents before you get in. Check for entry and exit hazards like rocks, sharp drop-offs, or boat channels. Note any posted signs about conditions, water quality, or hazards.
Identify landmarks. In a pool, you navigate by the lane line and the wall. In open water, you navigate by sighting on fixed objects like buildings, trees, or lifeguard towers. Pick two or three landmarks before you get in so you can orient yourself once you are swimming.
Getting In: Start Small
Here is permission to take it slow. You do not have to swim a mile on your first day. You do not have to swim at all if it does not feel right once you are in.
Wade in first. Walk out until the water is waist-deep. Stand there. Feel the temperature. Let your body adjust. Notice how the bottom feels under your feet. If there is a current, feel its pull and direction.
Dip your face. Put your goggles on and submerge your face. Open water feels different from a pool, cooler on the skin, different visibility, a different sense of space. Give your body and mind a moment to recalibrate.
Swim a short distance. Start with something easy. Swim 50 meters out along the shore, then come back. Stay in a depth where you could stand if you wanted to. The goal is to get comfortable with the sensation of open water swimming, not to cover distance.
Then, if it feels good, keep going. Extend gradually. Swim parallel to the shore rather than straight out, so you are never far from water you can stand in. On your first outing, 10 to 20 minutes of actual swimming is plenty.
The Buddy System
Swim with someone. This is the most important safety practice in open water swimming, and it is the one that experienced swimmers still follow religiously.
Your buddy does not need to be in the water with you, though that is ideal. A friend on a kayak, a paddleboard, or even watching attentively from shore provides a safety net. What matters is that someone knows you are in the water, can see you, and knows what to do if something goes wrong. Our open water swimming safety guide covers the buddy system, emergency signaling, and what to do when things go sideways.
If you cannot find a swimming partner, look for local open water swimming groups. Most cities near swimmable water have them, and they are almost universally welcoming to newcomers. Swimming with a group solves the safety problem and gives you experienced swimmers to learn from.
What to Expect
A few things will feel different from pool swimming, and knowing this in advance helps.
Temperature shock. Even in warm water, the initial immersion triggers a cold shock response: gasping, elevated heart rate, and a strong urge to get out. This is normal and it passes within one to two minutes. Breathe slowly and deliberately through it. Do not start swimming hard immediately. Let your body adjust.
Sighting is a skill. In a pool, you follow the line on the bottom. In open water, you have to lift your head periodically to see where you are going. This feels awkward at first and disrupts your stroke rhythm. It gets much easier with practice. Sight every 6 to 10 strokes initially and adjust from there.
You will drift. Currents, wind, and uneven stroke patterns mean you will not swim in a perfectly straight line. This is normal. Check your direction regularly and correct as needed. Do not stress about swimming a wobbly line. Everyone does at first.
Depth and darkness. Open water is not transparent turquoise like a resort pool. Depending on where you swim, you might see the bottom clearly, or you might see nothing but dark water below you. This triggers anxiety in some people. It is completely understandable, and it fades with experience. Focus on your stroke, your breathing, and the surface ahead of you.
Wildlife. You might see fish, turtles, birds, or other aquatic life. In the vast majority of cases, this is delightful rather than dangerous. Marine animals are generally uninterested in swimmers and will move away. If you are in an area with specific wildlife concerns (jellyfish, for example), ask locals about seasonal patterns.
After the Swim
Get out, get warm, and take a moment to appreciate what you just did.
Your first open water swim is a genuine milestone. You stepped out of the controlled environment of a pool and into a natural body of water with all its unpredictability and beauty. That takes courage, and it opens the door to one of the most rewarding forms of exercise on the planet.
Note what went well and what you would change for next time. Maybe different goggles. Maybe an earlier start for calmer water. Maybe a wetsuit, or maybe ditching the one you wore. Every swim teaches you something.
Building From Here
Your second swim will feel easier than your first. Your fifth swim will feel easier than your second. Open water swimming has a steep learning curve at the beginning that flattens quickly as your body and mind adapt to the environment.
Set small goals. Swim a little further each time, or try a different spot, or practice sighting until it feels natural. When you are ready for the ocean specifically, our beginner's guide to ocean swimming includes an 8-week progression plan for building distance and confidence in waves. Join a group swim. Enter a short-distance open water event, many have beginner categories starting at a quarter mile.
Track your swims and the conditions you encounter. Over time, you will develop a personal sense of what conditions suit you, what challenges you, and what you should avoid. SwimPass can help with that progression, logging your swims alongside the conditions data so you can see patterns in your own experience.
The water is out there, and it is better than anything a pool can offer. Welcome to the community.