Essential Highline Safety Checklist Every Beginner Slackliner Should Follow

I still remember the first time I stood on a highline. My legs were shaking, my heart was pounding, and I had this tiny voice in my head asking, “Did I double-check those anchors?” That’s the moment I realized that highlining isn’t just about balance—it’s about trust. Trust in your gear, trust in your setup, and trust in yourself. At Skyline Balance, we believe that safety isn’t a buzzkill. It’s what lets you actually enjoy the view from 50 feet up.

So if you’re new to highlining, here’s the checklist I wish someone had handed me before my first walk. No fluff, no preaching. Just simple, real-world steps to keep you safe so you can focus on finding your flow.

The Gear Check: Don’t Skip This

Before you even think about rigging, lay out all your gear. Every single piece. I’m talking webbing, line lockers, carabiners, slings, static rope (if you’re using a leash), and your backup system. Here’s what to look for:

Webbing Condition

Run your hands along the entire length of the webbing. Feel for any rough spots, frayed edges, or weird deformities. If you see a cut deeper than a few millimeters, retire that webbing. I know it’s expensive, but your spine is worth more.

Carabiners and Hardware

Check for gate action. Does it snap shut cleanly? Is there any grinding? Look for hairline cracks, especially around the nose and hinge. If you’re using steel, it’s heavier but lasts longer. Aluminum is fine for beginners, but inspect it after every session.

Backup System

You absolutely need a backup line. This is non-negotiable on highline. A separate webbing or rope that runs parallel to your main line and is attached to the anchors independently. It catches you if the main line fails. At Skyline Balance, we call it your “insurance policy.” Test it the same way you test your main line.

Anchor Setup: The Foundation of Everything

I’ve seen people spend an hour getting the tension perfect but forget to check their anchors. Don’t be that person. Here’s my simple anchor routine:

Tree Anchors

Find trees that are at least 12 inches in diameter (healthy, alive, no rot). Wrap your tree protection (a wide piece of webbing or a dedicated tree saver) around the trunk, then run your main line through it. Never tie directly to the bark—you’ll damage the tree and risk your webbing getting cut.

Ground Anchors

If you’re using bolts or deadmen, make sure they’re rated for the load. For a typical highline, that’s at least 10 kN per anchor. I always use a backup anchor (a second bolt or a second deadman) connected with a load-sharing sling. Overkill? Maybe. But I’ve never regretted having a backup.

Tensioning

Pump your line slowly. Use a line grip and a ratchet or a pulley system. Stop every few turns and check that the webbing is seated properly in the line lockers. If you hear a weird creak, stop and investigate. That creak might be a locker slipping.

The Buddy System: You’re Not Alone

Highlining alone is a bad idea. Even if you’re experienced, things can go wrong. A beginner should always have a partner who knows how to perform a rescue. Here’s what to cover with your buddy:

Communication

Before you step on the line, agree on signals. “Walk” means you’re going for it. “Stop” means freeze. “Tension” means the line needs adjusting. Use words that are short and clear. No hand signals—you’re both focused on balance.

The Spotter

Your buddy should stand near the edge, not under the line. They can see if you start to wobble dangerously. If you fall, they should be ready to call for help or assist with a rescue line. Don’t just hand them a phone and say “call 911.” Actually practice a simulated rescue.

Emergency Plan

Before you start, ask: “If I fall and can’t get back on the line, what’s the plan?” The answer should be: lower me down with a static rope and a descender, or call for mountain rescue. Have a phone with signal, and know the exact GPS coordinates of your spot.

Body Prep: You’re Part of the System

Your gear is only as good as your body. Highlining demands focus and control. Here’s how to show up ready:

Hydration and Food

You’ll burn more mental energy than you think. Bring water and a snack. I like a banana and a handful of almonds. Don’t start walking if you’re dizzy or hungry.

Footwear

Barefoot is great for training, but on a highline, I recommend a thin, flexible sole shoe (like a barefoot running shoe) or a dedicated slackline shoe. It gives you grip without numbing your foot feel. Avoid thick hiking boots—you’ll lose all sensitivity.

Warm-Up

Do a few minutes of calf raises, ankle circles, and deep squats. Your legs will be trembling on the line, and a warm muscle trembles less. I also do a few slow breaths on the ground before stepping up. Calm your nervous system.

The Walk: Trust Your Setup

When you’re finally on the line, your brain will scream “THIS IS TERRIFYING.” That’s normal. But you’ve checked everything. Your anchors are solid. Your backup line is there. Your buddy is watching. Now it’s just you and the line.

First Steps

Start with one foot on the line, the other still on the anchor platform. Take three deep breaths. Then shift your weight. Don’t look down. Look at the far tree or the horizon. Your eyes tell your body where to go.

Bailing Out

If you feel a panic attack coming, sit down on the line. Yes, you can sit. Wrap your legs around the webbing and just breathe. Then slowly crab-walk back to the anchor. There’s no shame in bailing. I’ve bailed more times than I’ve walked.

The Fall

If you fall, tuck your chin and try to land on your side or back. Don’t reach out with your arms—you’ll break a wrist. Your harness and leash will catch you. Trust the backup. I’ve fallen a few times, and the backup line held every single time.

After the Session: Learn and Share

Once you’re back on solid ground, take a few minutes to debrief with your buddy. What went well? What felt sketchy? Write it down in a notebook or a note on your phone. Over time, you’ll build your own personal safety checklist that’s tailored to your style.

At Skyline Balance, we always say that highlining is a conversation between you and the line. Safety is the grammar that makes that conversation possible. Without it, you’re just shouting into the wind.

So next time you rig up, run through this checklist. Take your time. Your future self—the one who’s standing on a line above a canyon, smiling—will thank you.