Your dock is a heated basking bench with a one-second escape to the water — iguana heaven. Here's how to make it far less inviting.
If your dock on the Intracoastal or a finger canal is covered in iguana droppings by mid-morning, you're not imagining it — a dock is close to the perfect iguana spot. The decking soaks up sun, the pilings are a ready climb, and the water is a one-second escape from anything that spooks them. They'll bask there daily and foul it faster than you can rinse it.
You can't move the dock off the water, but you can strip away the two things that make it a five-star basking site: the easy climb up the pilings and the sense that nothing ever bothers them there.
Wrap the pilings — this is the big one
Most dock iguanas climb the pilings to get up top. Smooth guards around the pilings remove the grip they need, and if they can't climb up, a lot of your problem walks off to an easier dock. This is the highest-value single thing you can do, and it's also the thing people most often install wrong.
The wrap has to be smooth, tall enough that an adult can't reach over it, and snug enough that it can't be defeated. Too low or too loose and a big male simply steps past it. Fit matters more than the product.
- Smooth clear or metal guards on every piling, set high enough that an adult can't reach over.
- Check for alternate climbs — a ladder, a swim platform, rip-rap, or a mooring line — and address those too.
- Confirm the wraps stay snug over time; sun and weather can loosen a poorly fitted one.
Take away the comfort
Beyond the climb, iguanas bask where they feel safe. A dock where they're regularly disturbed is a less appealing dock. Hosing the deck when you see them, keeping the area active, and removing any nearby overhanging branches they drop in from all chip away at the appeal. None of it is a silver bullet, but stacked with the piling wraps it moves them along.
If you feed fish or leave bait and scraps around, clean that up — anything edible is one more reason to hang around.
Clear the ones already treating it as home
Here's the order-of-operations point again: if iguanas are already denning in the bank right by your dock, hardening the pilings alone won't clear them — they'll just bask on the deck from the bank side. On a pressured waterfront you usually need to remove the residents and collapse the nearby burrows first, then the wraps keep new ones from setting up.
This is classic ongoing waterfront pressure, because the colony down the canal keeps sending candidates. It's the kind of thing a monitored program handles well — ours start at $99 a month with no lock-in — but the free property walk will tell you honestly whether you need that or whether wraps plus a single clear-out will hold.
Keep the droppings off in the meantime
Until it's under control, rinse the dock regularly and wear gloves when you do — iguana droppings can carry salmonella, so it's not just about the look. Keep kids and pets off the fouled boards until they're properly cleaned, especially on a dock where everyone's barefoot.
Questions we hear
What's the most effective way to keep iguanas off a dock?
Wrap the pilings with smooth guards set high and snug enough that an adult can't climb or reach over. Cutting the climb route is the single biggest lever, because most dock iguanas get up top via the pilings. Fit is everything — too low or loose and a big male steps right past it.
Will wrapping the pilings fix it if they're already living in my bank?
Not by itself. Iguanas denned in the bank right by the dock will bask on it from the bank side regardless of the pilings. On a pressured waterfront you clear the residents and collapse the nearby burrows first, then the wraps keep new arrivals from setting up.
Is the dock droppings situation a health concern?
Yes. Iguana droppings can carry salmonella, which matters a lot on a dock where people go barefoot. Rinse with gloves on, keep kids and pets off fouled boards until they're properly cleaned, and treat the mess as more than a cosmetic nuisance.
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