Fort Lupton with kids: a lazy river and a 139-foot slide, the splash park, storytimes and a rebuilt fort

Fort Lupton has one recreation center, one library and a scatter of small city parks, so most of what there is for children is in a few places: the Recreation Center and Community Center Park on South Harrison Avenue, and the library on South Rollie Avenue. Outside town there is a rebuilt fur-trade fort. This is where to go, with the rules worth knowing first. Times and prices are for fall 2026 unless a date says otherwise.

The pool

The Fort Lupton Recreation Center at 203 S. Harrison Avenue has a 4,060-square-foot leisure pool with zero-depth entry, a lazy river, a 139-foot water slide with four turns, a frog slide, a vortex pool and an underwater jet bench, kept at about 86 degrees all year. Life jackets are there for children and adults. On the Aquatics page’s fall schedule the slide and play features are on from 11:30 am to 8:30 pm on weekdays, 8 am to 4:30 pm on Saturday and 11:30 am to 4:30 pm on Sunday; before 11:30 on weekdays it is limited open swim. The pool party page gives noon as the weekday start, so check if you are aiming for the first half hour.

The rules are strict about small children. Children 6 and under must have someone 15 or older in the water with them and within arm’s reach; 7- to 9-year-olds need someone 12 or older in the building; 10 and up may swim on their own. Babies need swim diapers, which the front desk sells. Water wings, mermaid tails and strollers on the deck are not allowed, and nobody dives. The dry sauna is for 15 and up.

A youth day pass (ages 5 to 18) is $4.50 for residents of the city and $5.50 for everyone else; adults pay $6 and $8. A resident family pass is $79 a month or $630 a year, and $96 or $832 for non-residents (admissions). Resident means living inside the city limits, and the City warns that not every Fort Lupton mailing address qualifies.

Swim lessons start with Shrimps, a parent-and-child class from 6 months; the web page says to age 3 and the fall activity guide says to age 4. From there classes run through two preschool levels and Levels 1 to 5, ending with Whales, with two to six children in each. The fall guide’s next evening session runs Tuesdays and Thursdays from 27 October to 19 November (register online by 22 October), and its Saturday-morning session from 31 October to 21 November (by 29 October). The guide prices those sessions in two places, $55 or $60 for the evening one and $25 or $30 for Saturdays, so confirm at the desk.

Pool parties in the party room for up to 25 people for two hours are $150, or $190 with a cake, plates and punch; book on 303-857-4200 (pool party).

More at the Recreation Center

• The climbing wall is 27 feet with four routes. Open climb is Monday 4:30 to 6:30 pm and Thursday 5:30 to 7:30 pm; the guide says a membership or day pass is required.
• Drop-in child care takes ages 1 to 7 while a parent stays in the building, Monday to Thursday 8:30 to 11:30 am and 5 to 7:30 pm. It is free with a membership or $3 an hour, with a one-hour daily limit and no more than eight children at a time (child care).
• Classes run mostly once a month: Imagination Station for ages 3 to 5 and Kid’s Craft Corner for 6 to 9 at $10, Creative Chefs for 4 to 8 at $9, and Music & Movement for 3 to 5 on 17 and 24 October for $30 (youth classes). Parent’s Day Out on 19 December, noon to 4, takes ages 5 to 12 for $20.
• Teens and preteens have the Teen Room, with pool, air hockey and foosball tables. Teen Time, for ages 10 to 14, has its own nights, such as the Splash the Pumpkin Pool & Movie Party on 16 October and a card-game night on 22 October (teens).

The library

The Fort Lupton Public & School Library at 370 S. Rollie Avenue is open 9 am to 8 pm Monday to Thursday and 9 to 5 on Friday and Saturday, closed Sunday (hours). Its weekly storytimes:

• Dance & Play, Tuesdays: 10 am for infants to walkers and 11 am for walkers to age 2, with stories, songs and dancing.
• Storytime Explorers, Wednesdays: 10 am for ages 2 and 3 and 11 am for ages 4 to 6, each followed by STEAM and art activities.
• Cuentitos, a Spanish-bilingual storytime for ages 0 to 4, Thursdays at 10 am. The museum lists a Cuentitos with the library on the third Thursday as well.

For school-age children, Level Up! is a Monday program from 4 to 5 pm through the school year: movement games on the first Monday, a cooking class with Sticky Fingers Cooking on the second (space is limited), a surprise on the third and a field trip on the fourth. On 26 October it visits Fire Station 3 at 2470 S. Rollie Avenue, and 19 October brings live snakes and spiders. Cereal, Centers & Stories is a Saturday-morning breakfast, story and activity hour for grades K to 5, pajamas encouraged; the next is 17 October.

Older children meet at the library’s school location in Fort Lupton High School, 425 S. Denver Avenue: Middle School Hangout for grades 6 to 8 on Thursdays after school, and Teen LEGO Building for any high schooler on Wednesdays, both with a snack from the Weld Food Bank. The Makerspace, with 3D printers, a laser cutter, Cricut and sewing machines, is free for anyone 12 or older, or younger with an adult, after signing a use agreement.

Parks and the splash park

• Community Center Park, beside the Recreation Center, is 11.2 acres with a playground, a skate park, a soccer field and a walking path. Its rebuilt playground and splash park reopened in June 2024. The splash park opened on 23 May in 2026 and closes on Labor Day; it is unsupervised, children 6 and under need an adult with them, swim diapers are required and pets are not allowed. The library’s StoryWalk is here too, with Niño Wrestles the World by Yuyi Morales on its pages this fall.
• Koshio Park, at First Street and McKinley Avenue, has been closed for rebuilding since 15 July 2026. The City expects it to reopen in late fall with an accessible playground that has a zipline, a pavilion and a walking trail (project page).
• Neighborhood playgrounds are at Cannery Park, a 0.4-acre pocket park at Fifth and Fulton (City page); Railroad Park, 8.6 acres with ball fields and sand volleyball (City page); Lancaster Park, 13 acres with basketball (City page); Pearson Park on Highway 52, with restrooms and a scenic overlook (City page); and Heritage Park on Northrup Avenue (City page).

City parks are open dawn to dusk and free. Playground equipment is used at your own risk with adult supervision, dogs stay on a 10-foot leash, and glass and alcohol are banned (park rules).

The fort and the museum

The South Platte Valley Historical Society’s historic park, at 2001 Historic Park Way northwest of town, has the rebuilt 1830s trading fort, an 1850s trapper cabin, an 1875 one-room schoolhouse and an 1860s farmhouse. It opens to walk-in visitors on the first and third weekends of each month from May to October, 10 am to 4 pm, so 17 and 18 October are the last days this year. Members get in free; the suggested donation is $5 for visitors 13 and over, and children 12 and under are free. Each summer the Society runs a Pioneer School in the schoolhouse, where children try a school day as it was in 1875.

The Fort Lupton City Museum on First Street is free, open Wednesday to Friday 10 am to 3 pm, with an arrowhead collection and the story of the town’s tomato canneries (museum).

The calendar

• October: Pumpkinfest at the fort on 10 October, free, with a trick-or-treat trail, a kiddie train and hayrides at dusk. The library’s Spooktacular October ends with Teen Laser Tag on 30 October and a free Halloween Pancake Breakfast on the 31st, and the Chamber’s Trick-or-Treat Street is downtown that afternoon.
• December: the City’s Winterfest with Cookies & Cocoa with Santa is on 5 December, starting with Santa’s story time at the library and moving on to the Recreation Center; times are not yet out (activity guide, Special Events). The library’s La Posada and Lotería celebration is 8 December.
• Spring and summer, by the 2026 dates on the City’s Special Events page: an Easter Egg Hunt for ages 0 to 12 at Community Park, an Independence Day celebration with a kids’ zone, bounce houses and a kiddie train, and National Night Out in August. The library’s Summer Reading Adventure ran from 27 May to 29 July in 2026.