10 Low-Cost Things To Do With Kids in Key West

Budget-Friendly Key West Adventures for Kids

Hey guys! I just got back from the most spontaneous (and surprisingly affordable) trip with my two kids to Key West, Florida, and I’m still smiling every time I think about it. If you’ve ever worried that island vacations are too pricey with little ones, I’m here to tell you — Key West is totally doable on a budget. You just have to know where to look!

Here’s my list of 10 low-cost or free things to do in Key West with your kids, all tried, tested, and approved by this tired-but-happy mom dad and their two adventurers kids.

1. Walking Around Old Town Key West

Let’s start with the simplest (and totally free) activity: walking! Trust me, Key West is one of those places where wandering is half the fun. We strolled through the colorful streets, past quirky houses, chickens crossing the road (literally), and art tucked into corners you’d miss if you weren’t on foot. It’s great exercise and helps you soak up the local vibe.

Mom Tip: Bring good walking shoes and water bottles — even the kids didn’t complain because there was always something cool to spot.

2. Sunset Celebration at Mallory Square

This was honestly my favorite part. Every evening, we made our way to Mallory Square to watch the sunset, and I swear it felt like we were in a postcard. The sky turned into this magical mix of pink, orange, and gold — and then, like clockwork, the square turned into a mini festival.

There were street performers (my daughter was OBSESSED with the fire juggler), musicians, and little stands selling handmade jewelry and snacks.

Bonus: It’s 100% free to watch and unforgettable for the whole family.

3. Renting Bikes to Explore the Island

We rented bikes from Eaton Street Bikes (super friendly folks!) and it was a game changer. The island is small enough that you can get almost anywhere by bike — and you’ll pass by the coolest hidden spots.

They even had a tandem bike for me and my youngest, so I didn’t have to worry about her keeping up. My preteen loved zipping ahead and “leading” us around like a local.

Pro Tip: Look for rental shops with hourly options or discounts for multi-day use!

4. Beaches, Beaches, Beaches!

I had heard that Key West wasn’t a beachy island... but we found three great ones!

• Smathers Beach – Big, beautiful, with plenty of space for sandcastles.
• Higgs Beach – This one was super shallow and perfect for little swimmers.
• Fort Zachary Taylor State Park Beach – A bit rockier, but there’s snorkeling, shady picnic spots, and even a little snack bar.

Admission to Fort Zach is only a few dollars per vehicle, and totally worth it for a whole day of fun.

5. Truman Waterfront Park & Playground

We stumbled on this gem while biking — Truman Waterfront Park. It’s got a massive splash pad, a pirate-ship playground, and wide open grassy areas to run wild. The kids were thrilled. I sat in the shade sipping iced coffee like I had it all figured out. (Spoiler: I didn’t, but it felt like I did for a moment.)

Did I mention it’s free?

6. Kayaking Through Mangroves

Okay, this was our only slightly pricier activity, but still under $50 for all of us — and so worth it. We booked a kayak trip with Lazy Dog Adventures and paddled through quiet salt ponds and mangrove tunnels.

We spotted nurse sharks (don’t worry, they’re harmless), crabs scuttling around the roots, and so many birds. It was peaceful and surprisingly easy for beginners like us.

7. Visiting the Key West Wildlife Center

This spot is a hidden treasure — and totally free! The Key West Wildlife Center is a rehab center for injured birds, and the staff were kind enough to answer my kids’ million questions. There’s a cute little trail out back with turtles and a pond, perfect for a quick visit that doesn’t cost a dime.

8. Photo Scavenger Hunt at the Southernmost Point

You know that big colorful buoy that marks the Southernmost Point in the Continental U.S.? Yup, we went. And yes, it’s touristy, but it’s also fun! We turned it into a photo scavenger hunt: first one to find a conch shell mailbox, a pink house, and a rooster wins an ice cream later.

The buoy photo? Free. The family memories? Priceless.

9. Peeking into Free Art Galleries

Old Town is sprinkled with little art galleries that don’t mind curious kids walking through. Some have sculptures, bright Caribbean paintings, and even interactive exhibits. It’s like walking through a museum, but without the hush-hush rules or ticket fees.

10. Picnic at Bayview Park

Last but not least, we wrapped up one afternoon with a picnic under the shade trees at Bayview Park. There are tennis courts, a playground, and it’s a perfect low-key hangout. We grabbed sandwiches from a local deli and let the kids just be kids.

Honestly, Key West turned out to be such a sweet surprise. We had so much fun without constantly swiping the credit card. From beach days and bikes to sunsets and splash pads, there are plenty of affordable ways to explore this vibrant little island with your kiddos.