Running in Northeast Florida is beautiful. We’ve got the coast, the trails, and the most stunning scenic routes. But there’s another side to it: Florida’s ecosystem is actively hostile. If you lace up your shoes in this state, you might be in for more than a workout. From microscopic, biting bugs to literal dinosaurs chilling in every body of water, surviving a training cycle here requires a very specific set of survival skills.
In the spirit of public safety (and dark humor), here is my official, entirely scientific rating of the local hazards that every Florida runner has to dodge, rank, and survive.

No-see-ums and Mosquitos
- Threat Level: 7/10 (For psychological warfare)
- The Lowdown: Individually, they are tiny. Collectively, they are pure, concentrated evil. If you are trying to keep a daily movement streak alive and you dare to step outside at dusk or dawn without a THICK layer of bug spray, you will pay the price. Mosquitos are bad enough, but no-see-ums are the true villains. You can’t see them, but they fly in your nose, mouth, and eyes, and pack a wallop with their bites.
- The Rating: Annoying enough to make you consider running on a treadmill.

Yellow Flies
- Threat Level: 9/10 (Pure malice)
- The Lowdown: Unlike mosquitos, which are just looking for a quick snack, yellow flies run on pure hatred. They don’t buzz around you politely; they lock onto your coordinates like a heat-seeking missile and pursue you at your pace. They will hover to bite you again and again, even working in packs, and their bites swell up into angry, throbbing welts that last for days. If you see one on a trail run, your only option is to drop your pace and sprint for safety.
- The Rating: The unofficial speed-work coaches of Florida. Zero stars.

Snakes
- Threat Level: 7/10 (Heart attack fuel)
- The Lowdown: Running in Florida means playing a permanent game of Stick Or Snake. Most of the time, you’ll encounter just a harmless black racer or water snake catching some rays, but it doesn’t matter. Your brain registers “danger noodle” and suddenly you are performing an Olympic-level hurdle over it while shrieking in broad daylight. If you’re out on the trails and run across a cottonmouth or coral snake, your heart rate spikes faster than it ever would during a tempo run.
- The Rating: Excellent for testing your agility and your pelvic floor muscles. Be careful where you step.

Alligators
- Threat Level: 4/10 (Surprisingly low)
- The Lowdown: Tourists think alligators are our biggest threat, but local runners know the truth: gators are pretty chill. They just want to lay in the sun, look menacing, and do absolutely nothing. I can relate. Unless you are running dangerously close to the water’s edge during mating season or trying to take a selfie with one on a boat ramp, they usually just look at you with total indifference.
- The Rating: Great for a local photo op from a very safe distance, but that’s about it.

Wild Pigs
- Threat Level: 8/10 (The chaotic wildcards)
- The Lowdown: If you spend any time running the wooded trails around St. Augustine, you know the absolute terror of hearing a sudden, heavy rustling in the palmettos. Wild hogs are horrifying. They’re fast, they’re built like brick walls, and they are aggressive. Encountering a momma hog with her babies will have you sprinting for your life (Pro-tip: don’t try to boop the babies. Bad idea).
- The Rating: An adrenaline rush nobody asked for. Keep your eyes on the tree line.

Hurricanes
- Threat Level: 6/10 (Scary but predictable)
- The Lowdown: Hurricanes are a menace, but at least they give you a week’s notice before they ruin your weekend long run. The real danger here isn’t the storm itself. It’s the build up. You’re trying to sneak in your miles before the bands hit, while simultaneously dodging neighbors fighting over the last case of water at Publix and watching plywood fly across the street. Post-storm running turns your neighborhood into a literal obstacle course of fallen oaks and standing water.
- The Rating: Taper week by force. Mother Nature’s way of telling you to take a rest day.

Survival of the Fittest
At the end of the day, if you can survive running in Florida, you can survive just about anything. The heat is one thing, but dodging the local wildlife, the local characters, and weather patterns builds a very specific kind of mental toughness. It might be a jungle out there, but it’s our jungle.
What’s your absolute worst running encounter?
Join the Runner’s Roundup!
Link up each week to post your favorite running tips, experiences, race and training recaps, workouts, gear, and coaching ideas. Join your hosts Coach Debbie Runs, Confessions of a Mother Runner, Mile by Mile, and Runs with Pugs, each week for the Runners’ Roundup linkup! Your link must be running related. Unrelated links will be removed. You must link back to your hosts — it’s common courtesy and a lot more fun! Spread the link-up love by visiting at least two other #running bloggers! Leave a comment and find new blogs to read! Use hashtags #running and #RunnersRoundup to stay in touch and promote your content!





Oh my goodness, those yellow flies sound so horrible! “Running on pure hatred” paints a very vivid picture.
As for my worst running experience, it was a Cape Cobra here in South Africa. I was out on a trail run when it suddenly raised his head in front of me. It was so scary! But fortunately, it was just as scared as I was and disappeared very quickly.
They are so mean. And relentless. They will literally chase you out of their area.
I would have expired if I saw a cobra!
You may have me rethinking any future runs in Florida! We have had tiny bugs here lately that like to fly into my mouth while I’m running. I think those wild pigs would really freak me out!
THE BUGGGGSSSSS! I can’t deal with them!
I don’t love the wild pigs. I watched one charge and bounce off a car once… it was absoutely unscathed, and the car had a giant dent. no, thank you.
I guess I will not be running in Florida any time soon. All along, I would have thought that alligators were the worst that could happen. Who knew?
While we get a few bugs early in the morning and of course the occasional rattlesnake (which fortunately gives you warning if you’re paying attention) there are no wild pigs around any corner.
I loved the humor in this post even if it kind of scared me to death. 🙂