🌤 Weather at Devil’s Millhopper Geological State Park by season
| Spring | Summer | Fall | Winter |
|---|---|---|---|
| 50–88 °F | 69–92 °F | 51–89 °F | 43–71 °F |
Each range runs from the coldest monthly average low to the warmest monthly average high in that season (1991-2020 climate normals), measured at Gainesville 11 Wnw, 6 mi away, elevation 95 ft. Conditions at the park can differ from the station, especially where elevation differs — check a forecast before you go.
Tucked away in the north-westernmost part of Gainesville, you’ll find the Devil’s Millhopper Geological State Park.
At just 71-acres it is one of the smaller state parks in Florida. However it does have two main draw cards – a large sink hole and a lovely nature trail – that both provide reason enough to come here.
If you are into birding you’ll find plenty of species to spot. Picnicking is another popular activity, as there are several scenic spots in which to enjoy an al fresco meal.
For those looking for a change of scene, the park offers a nice connection with nature. But as it has nothing in the way of overnight accommodation, you will need to stay at one of the nearby campgrounds should you require a place to stay.
About Devil’s Millhopper Geological State Park
The park is well maintained by the Florida State Parks system. This is one of the divisions of the Florida Department of Environmental Protection.
Lying in close proximity to both the san felasco hammock preserve state park and the San Felasco County Park it is also about an hour and 15 minutes drive from Jacksonville.
The park is pet-friendly and there is plenty of parking available within it.
Activities
Those who come to the park can choose to enjoy its landscape in a few different ways.
Below is a brief overview of some of the things you can see and do while you are there.
The Sinkhole at Devil’s Millhopper Geological State Park
Undoubtedly, the park’s main feature is its large sinkhole.
Created by limestone being dissolved by acidic groundwater over thousands of years, the hole is a National Natural Landmark which has attracted visitors ever since it was first discovered in the 1880s.
While there are a few sinkholes in Florida, what makes this one unique is its sheer size. Overall, you can see more than 100 exposed feet of rock layers.
Leading down to a miniature rainforest, you are able to see small streams trickling down its scarp, as well as the lush vegetation that scales it.
At the bottom of the sinkhole, fossilized remains were found by researchers of marine shells, shark teeth and other extinct animals, that provide a fascinating insight into Florida’s natural history.
Hiking at Devil’s Millhopper Geological State Park
Those who want to explore the sink hole in a more up close and personal way can travel down a boardwalk system that descends towards the bottom of it.
All up, you will have to navigate 132 steps, but it will take you into the heart of this spectacular geological wonder.
If you would prefer to stay at the top of the sinkhole, there is a scenic nature trail that runs along it which is well worth tackling.
Should you happen to visit on a Saturday, you could choose to go on a guided walk with a ranger.
Picnicking at Devil’s Millhopper Geological State Park
While at the park many visitors decide to enjoy a picnic.
You will find picnic facilities complete with grills and tables throughout the park. So you will be able to cook up some burgers, sausages, fish or steaks while you are there.
For those who require it, one of these tables is wheelchair accessible.
Birding at Devil’s Millhopper Geological State Park
For those into birdwatching the park offers plenty of opportunities to spot a wide range of species.
Some of them live in the park all year round while others only pass through during the migratory period.
Depending on when you visit the park you might see the likes of Little Blue Heron, Yellow-bellied Sapsucker, Red-tailed Hawk, Louisiana Waterthrush and Northern Parula. So be sure to bring your binoculars with you when you come here.
Nature & Wildlife
Despite only being 71 acres in size, Devil’s Millhopper Geological State Park possesses three distinctive ecological environments.
Based on their prolonged exposure to water, fire and sun, these environments include a sandhill area where pine trees are the main vegetation. There is also a hammock part that contains plenty of low vegetation and broadleaf trees, as well as swampland that supports a diverse range of flora and fauna.
In addition to the birds that frequent the park, you might also see several other species of fauna during your time at Devil’s Millhopper Geological State Park.
This includes squirrels, rabbits and a host of amphibians and reptiles.
Pets at Devil’s Millhopper Geological State Park
You can bring your dog for a walk on the nature trail, a picnic or the walk down to the sinkhole, as long as it stays on a 6-foot, hand-held leash and you pick up after it (park amenities page).
Statewide, pets are not permitted on beaches, boardwalks or playgrounds, or in bathing areas, cabins, park buildings or concession facilities (Florida State Parks pet policy, as of October 2026).
Individual parks may have specific areas where pets are not allowed, so contact the park directly for the most up-to-date information.
Camping at Devil’s Millhopper Geological State Park
Unfortunately for those looking for overnight accommodation there is none available at the park. However, not far from it there are several other campgrounds you can base yourself at.
This includes Kate’s fish camp, Santa Fe Palms RV Resort and the Travelers Campground. Between them they offer a good range of accommodation options that include everything from group camping and primitive tent sites to full hookups that come with connections for water, sewer and electricity.
Depending on which one of them you stay at, amenities may include flush toilets, hot showers, a dump station, swimming pool, children’s playground and an onsite convenience store.
Park Location
Devil’s Millhopper Geological State Park
4732 Millhopper Rd
Gainesville, FL 32653
Phone: 352.955.2008
Map
Video
Here is a short YouTube video showcasing several attractions at Devil’s Millhopper Geological State Park:
Florida’s Giant Sinkhole
Devil’s Millhopper is a massive 120-foot deep sinkhole with a unique rainforest ecosystem. A 232-step stairway descends into the lush pit!
The Sinkhole
| Feature | Details |
|---|---|
| Depth | 120 feet |
| Width | 500 feet |
| Age | ~10,000 years |
Stairway
232 steps lead to the bottom where you’ll find springs, ferns, and a unique microclimate.
Explore More Florida State Parks
Devil’s Millhopper Geological State Park is one of many outstanding state parks in Florida. Discover more parks in our Best State Parks in Florida guide, or use our Park Finder to search by activity, location, or features.
Insider Tips
Giant sinkhole: Devil’s Millhopper is a massive 120-foot-deep sinkhole with a miniature rainforest at the bottom. Pro tip: A boardwalk descends 232 steps into the sinkhole — the temperature drops noticeably as you descend. Geology: The sinkhole formed when the limestone roof of an underground cavern collapsed.
Best Time to Visit
Summer: Cool escape at the bottom. Winter: Comfortable exploration. Spring: Lush ferns and wildflowers. Fall: Less crowded.
Frequently Asked Questions
What is a sinkhole?
A sinkhole forms when underground limestone dissolves, creating a cavern whose roof eventually collapses. Devil’s Millhopper is 120 feet deep and 500 feet across. The cool, moist environment at the bottom supports plants typically found hundreds of miles north — creating a miniature Appalachian forest in central Florida.
How many steps to the bottom?
232 steps! The boardwalk stairway leads to the cool, lush bottom of the 120-foot sinkhole.
Nearby parks: If you have extra time, San Felasco Hammock Preserve State Park is a short drive away, and Paynes Prairie Preserve State Park is a short drive away.
🐾 Dogs & Pets at Devil’s Millhopper Geological State Park
Park policy: Florida's statewide policy keeps pets off boardwalks, but this park explicitly invites them onto its signature one: the official amenities page tells you to bring your pet for a walk on the nature trail, a picnic, or a walk down to the sinkhole. The boardwalk system descending to the bottom is open to dogs on a hand-held 6-foot leash, and you are expected to pick up after your pet on it.
- Pets allowed?
- Leashed dogs may walk the boardwalk stairway down into the 120-foot sinkhole
- Leash rule statewide rule
- Leashes may not exceed 6 feet; pets must be under physical control at all times.
- Beaches & swim areas statewide rule
- Pets are not permitted on beaches, boardwalks or playgrounds, or in bathing areas — swimming pets can be viewed as prey by alligators.
- Cabins & lodging statewide rule
- Pets are not allowed in any state park buildings, cabins or cabin areas.
- Statewide exceptions statewide rule
- Pets prohibited at several parks including Ellie Schiller Homosassa Springs (free kennels at the entrance), Weeki Wachee Springs and Egmont Key; in campgrounds pets must be confined in the camping unit 11 p.m.-7 a.m.
Are dogs allowed at Devil’s Millhopper Geological State Park?
Leashed dogs may walk the boardwalk stairway down into the 120-foot sinkhole.
Beyond that, Florida’s statewide rules apply.
Rules verified July 2026 via floridastateparks.org. More: Florida state parks guide · Dog rules in all 50 states compared
Park Location
Plan your gear for Devil’s Millhopper Geological State Park
From our editorial guides, matched to this park’s activities:
