Splash Island Water Park in Plainfield is a West Side Secret

Nothing says summer quite like a pool day at the public pool, or better yet, an Indiana waterpark day! Enter Splash Island Water Park in Plainfield.

I’m so thankful that the Indianapolis area is home to some pretty spectacular pools, water parks, and splash pads. The best part? The admission price is a very good deal!

Splash Island Water Park in Plainfield will open for the 2024 season with a Member’s Only Preview Night on May 22. The Waterpark will open to the public on May 24 and will close for the summer on Labor Day Monday.

New and Improved for the 2024 Season

Last fall, Plainfield announced extensive additions and renovations at Splash Island. The new developments include three waterslides, which will give the park a total of six. You can also expect to see a splash pad, cabanas for rent, an updated maintenance building, and a new play structure to replace the one previously located in the main pool.

These exciting attractions opened with the rest of the waterpark at the beginning of the 2024 season.

Play and Relax at Splash Island

Splash Island in Plainfield is a gorgeous and fun outdoor water park with so many different things to do. No matter what your speed is when you visit, Splash Island Water Park is a ton of tun.

Splash Island has a lazy river, but they named it a “Leisure River” and I’m okay with that! This is my favorite feature at any water park and the Splash Island Waterpark river is one and a half times the length of the river at the Carmel Waterpark. This means I get to lay back and relax for a long time. Now that you all know where to find me, let’s talk about the other awesomeness that Splash Island Water Park has!

Splash Island Waterpark Water Slides

There are three water slides that are about 2 ½ stories tall and a six-lane competition pool with an attached diving well and two diving boards. My extreme adrenaline-loving kids love these areas.

Water Park Play Areas

There’s an interactive play area for all ages including kiddie slides, water jets, ropes, and water guns, a gently winding river. This is a river that’s separate from the Leisure River. My kids love the lily pad crossing, two pulsating vortexes, and the pool area for infants and small children, known as the GUPPY TANK.

I love that there’s plenty of deck space and grassy areas for sunbathing and family fun.

Food at the Plainfield Waterpark

There is a snack bar area that sells snacks and lunch items, including my favorite: Dippin Dots! You are allowed to bring your own lunch in a cooler but they are to be kept in a designated area and will be searched when you arrive. No glass and no commercially prepared food.

Admission to Splash Island Water Park

Here’s your admission information for Splash Island Outdoor Waterpark in Plainfield.

Ages 18 and up – $17
Ages 5 to 17 – $14
Ages 2 to 4 – $13
Age 55+ – $14
Just watching (street clothes) – $6
Infants 1 and under – FREE
Wet Wednesday Admission – $8
August – Labor Day – $8

Did you know that Plainfield residents pay a discounted fee? Town of Plainfield residents pay:

Ages 18 and up – $12
Ages 5 to 17 – $10
Ages 2 to 4 – $9
Age 55+ – $10
Just watching (street clothes) – $5
Infants 1 and under – FREE

2024 Splash Island Waterpark Hours

Friday, May 24 – Labor Day

Monday-Friday: 11 am – 8 pm
Saturday: 10 am – 6 pm
Sunday: 12 pm-6 pm

Members get an extra hour to play on weekdays! Your Splash Island membership gains you early access to the waterpark at 10 am, Monday through Friday.

End of Summer Weekends

August 6th will be the last weekday of the 2024 season. Beginning August 10th, the new schedule will include weekends only. Splash Island will be open Saturdays, 10 am to 6 pm, and Sundays,  12 pm to 6 pm.  The Splash Pad will remain open Monday – Friday from 12 pm-4 pm starting August 7th. The final day of the season will be Labor Day, Monday, September 2nd, 10 am to 6 pm.

For a complete schedule and more details, please see the Splash Island website.

Birthday Parties at Splash Island Water Park

Splash Island Water Park has two party areas for rent on the weekends. Each area has space for 25 guests in total. When you rent a space for a party, you are permitted to bring in your own food and drinks. Each party area has three picnic tables and one rectangular table.

Rental space begins at $135 for two hours and includes admission for 25 guests. What a cool summer birthday party idea. You also have the option to rent out the whole waterpark starting at $700 per hour.

Plainfield, Indiana

There’s also an indoor water park in Plainfield. The Plainfield Recreation Center Indoor Aquatic Center closes during the summer months but it is so much fun during the fall – spring time. This is just one of the many things to do in Plainfield.