A 35-foot tower at the end of an elevated boardwalk, with Boca Ciega Bay and the barrier islands laid out in front of you. Add 186 acres of seven different habitats, a bird list of 175-plus species, a 1.5-acre dog park, and Ice Age fossils under your feet — all about two miles from our Seminole rental.
Why We Love This Place
Locals call this a hidden gem, and for once the phrase is earned. Boca Ciega Millennium Park sits in the middle of Seminole, surrounded by ordinary suburbia, and almost nobody outside the immediate area knows it’s here.
The approach sets the tone: a long, winding entrance drive under a canopy of moss-covered live oaks, past a chain of ponds. Then the boardwalk lifts you off the ground and carries you out through mangroves to a three-storey observation tower, and suddenly you’re looking across the whole bay.
What makes it more than a viewpoint is the variety packed into one park. The county lists seven habitats here — pine flatwoods, coastal oaks, hammock, mangrove swamp, salt marsh, bay head and wetlands — and you pass through most of them in under a mile of walking. That’s why the birding is so good.
At a Glance
| 📍 Address | 12410 74th Ave N (Old Oakhurst Rd), Seminole, FL 33772 |
| 🕐 Hours | 7 days a week, 7am to sunset |
| 💵 Cost | Free |
| 🏞️ Size | 186 acres |
| 🔭 Tower | 35 feet, reached by elevated boardwalk |
| 🥾 Nature Trail | 0.25 miles, plus boardwalks and bike/pedestrian paths |
| 🐦 Birding | Great Florida Birding Trail site — 175+ species |
| 🐕 Dog Park | 1.5 acres, separate small and large areas |
| 🚲 Trail Access | Connected to the Pinellas Trail by sidewalk along 74th Ave N |
| 🚗 From Our Rentals | ~7 min from Seminole, ~15 min from Largo |
Note: county parks close two days a year — the day after Thanksgiving and December 25.
Park Map
The Boardwalk and the Tower
This is the reason to come, and it’s worth doing in the right order.
Park at the lot for shelters three and four. The boardwalk starts behind the restrooms. Follow it to the T intersection and turn left, and you can walk down to an overlook above a small pond ringed by large pines. Come back and continue as the boardwalk rises into the mangrove marshes; the observation tower arrives after about 0.3 miles.
Climb it. Thirty-five feet doesn’t sound like much, but in a county this flat it’s enough to see for miles — out over Boca Ciega Bay to the barrier islands, and back along the boardwalk over the swamps and forest you just crossed. The tower is covered and open-air, so it works in most weather.
From there the boardwalk carries on along the mangroves and loops back through maritime hammock, finishing at around 0.8 miles. Keep right at the fork to return to the correct parking area.
One access note: most of the park is wheelchair accessible, but the tower itself is not — it’s stairs to the top.
Where to Park
The entrance road runs a long way south through the park, and which lot you choose determines your day.
🅿️ First Lot — For Birding
Take the first right after the entrance. From here a short paved walkway heads back toward the entrance alongside the ponds — the best spot to scan for wading birds like white ibis and little blue heron, and for river otters. The nature trail also starts near here, looping through flatwoods and swamp in the centre of the park.
🅿️ Second Lot — For the Boardwalks
Further along the entrance road, and the usual access point for the boardwalk system and the tower.
🅿️ Shelters 3 & 4 Lot — For the Full Walk
Continue along the park road to the parking area for shelters three and four. The boardwalk begins directly behind the restrooms, which makes this the cleanest starting point if the tower is your goal.
What Else Is There
🐕 The Dog Park
A full 1.5 acres, with separate fenced sections for small and large dogs. One of the better dog parks in the county, and a genuine reason to come back.
Important: dogs are welcome on leash throughout the park except on the boardwalks, the observation deck and the pavilions. Plan around that — you can’t take the dog up the tower.
🛝 Playground
Large and partially shaded, near restrooms. Not fenced, so keep an eye on smaller children.
🛶 Kayak Launch & Fishing
There’s a canoe and kayak launch and shoreline fishing access to the bay. If you’re staying at our Seminole place, this is the closest easy paddle to the door.
🏕️ Picnic Shelters
Seven of them, reservable through the county’s booking system. Worth arranging ahead for a group.
Birding
The bird list here runs to more than 175 species, which is why the Florida Fish and Wildlife Conservation Commission made it a Great Florida Birding Trail site.
The habitat mix does the work: pine flatwoods, bayheads, oak hammock, mangroves, salt marsh and freshwater wetlands all in one park. Expect shorebirds, wading birds, birds of prey, upland birds and waterfowl depending on where you stand.
Best approach: ponds first from the first parking area, then the boardwalk through the mangroves, then the tower for a wide view. Early morning is best, as everywhere.
The Fossils
Worth knowing before you visit, because it changes how the place feels underfoot.
The park was dedicated on April 7, 2001. Six years later, in 2007, a major discovery of Pleistocene-age fossils turned up here — bones of Columbian mammoth, giant sloth, giant armadillo, sabre-toothed cat and camel, along with many amphibians, reptiles and fish. They’re now at the Florida Museum of Natural History in Gainesville, where thousands of fossils and fragments are still being identified. The county’s own description is nicely honest about it: the park’s story from 12,000 to 32,000 years ago is yet to be told.
There’s also a time capsule near the entrance, sealed with more than a hundred items for future generations — fitting for a park named for the millennium. And the Florida Native Plant Society has recognised the park for its use of native plants in the landscaping.
Riding There from the Pinellas Trail
You don’t have to drive. The park is accessible from the Pinellas Trail via sidewalks along 74th Avenue N, which means guests who’ve rented bikes can ride here rather than loading the car.
From the Pinellas Trail, come off at 74th Ave N (Old Oakhurst Road) and follow the sidewalk west to the park entrance on 125th Street. Seminole City Park, at trail mile 13.4, is the nearest major trailhead.
👉 Our full Pinellas Trail guide | Back to our biking guide
Know Before You Go
🐊 It’s a Real Wetland
Alligators and snakes live here. Keep children close and dogs leashed near the water, and don’t leave the boardwalk or the marked trails.
🦟 Bring Repellent
Mangrove and salt marsh in a Florida summer means mosquitoes and no-see-ums, especially at dawn and dusk — which is also when the birding is best. Plan accordingly.
🌡️ Morning Is the Move
Gates open at 7am. The boardwalk is partly shaded but the tower is fully exposed, and by midday in summer the climb is unpleasant.
🅿️ Don’t Stop at the First Lot
The entrance drive is long and the park is bigger than it looks from the road. If you came for the tower, keep going.
Nearby
- Lake Seminole Park (10015 Park Blvd) — two miles of paved loop trail through pine flatwoods, with bike and kayak rental on site
- Seminole City Park (7464 Ridge Rd) — the nearest Pinellas Trail access
- Eagle Lake Park (1800 Keene Rd, Largo) — the other easy family ride, about fifteen minutes north
Getting There from Our Vacation Rentals
From our Seminole rental (13189 87th Ave N): roughly 2 miles, about 7 minutes. South to 74th Ave N, then west to 125th Street; the park entrance is on the right.
From our Largo rental (1731 Clearwater Harbor Dr): roughly 7 miles, about 15 minutes.
Driving from further out: from US 19 in Pinellas Park, follow Park Blvd (CR 694) west into Seminole, cross US 19A, and continue west to 74th Ave N (Old Oakhurst Rd). Turn left, then left again on 125th Street; the entrance is on the right.
📱 GPS directions to Boca Ciega Millennium Park
If you’re staying at our Seminole place and only do one outdoor thing, make it the boardwalk and the tower. Go early, take the camera, and give it a couple of hours.
