Planning a summer visit to Rolling Hills Water Park in Ypsilanti, Michigan? This updated guide covers 2026 resident and nonresident ticket prices, separate county-park vehicle fees, hours, season dates, online tickets, Plunge Peak waterslides, White Cap Bay wave pool, lazy river, younger-kid activity pool, food and shade rules, directions, parking and a practical family visit plan.
- Resident admission: $12
- Nonresident admission: $16
- 36″ & under: free
- Resident vehicle entry: $6
- Nonresident vehicle entry: $10
What Is Rolling Hills Water Park?
Rolling Hills is an outdoor county-operated waterpark inside Rolling Hills County Park in Ypsilanti Township, southeast of Ann Arbor. It is designed as a practical family day park rather than a large destination theme park.
Wave Pool
White Cap Bay provides the classic wave-pool part of the day, with calmer intervals between wave cycles.
Lazy River
A slow-moving river provides a lower-intensity break between waterslides and wave-pool sessions.
Waterslides
Plunge Peak and the park’s additional slide area give older children and adults more active attractions.
Activity Pool
Zero-depth entry, water features and a smaller children’s slide make this the natural starting point for younger families.
Build Your Rolling Hills Visit Plan
Select your group, residency and priority to get a practical starting strategy before you buy tickets.
Rolling Hills Waterpark Ticket Prices 2026
Rolling Hills uses separate charges for entering the waterpark and bringing a vehicle into Rolling Hills County Park. Add both costs when building your family budget.
| 2026 Cost | Washtenaw County Resident | Nonresident | Important Detail |
|---|---|---|---|
| Waterpark Admission | $12/person | $16/person | Applies to guests above the free-height threshold. |
| Children 36″ & Under | Free | Free | Height is the important qualification rather than a published age cutoff. |
| Daily Vehicle Entry | $6 | $10 | Separate from individual waterpark admission. |
| Annual Vehicle Pass | $30 | $45 | Useful to compare if your household expects multiple county-park vehicle visits. |
Have proof of local residency available when claiming resident pricing.
Check your visit date before paying because seasonal hours and availability can vary.
Do not calculate your family total using admission alone.
Official check: Rolling Hills online tickets .
Rolling Hills Family Cost Calculator
Estimate the core 2026 cost for waterpark admission plus one or more vehicles. Food, optional purchases and transportation are not guessed.
Vehicle admission: $6.00
Rolling Hills Water Park Hours 2026
Rolling Hills is a seasonal outdoor waterpark. Its normal main-season schedule was 12:00 PM–7:00 PM, but the school-calendar edges of the season used modified operating days.
| 2026 Period | Published Schedule | Planning Note |
|---|---|---|
| Opening Day | May 23, 2026 | Memorial Day weekend opening. |
| Main Summer Schedule | 12 PM–7 PM | Standard public summer hours. |
| May 26–29 | 12 PM–5 PM | Shorter weekday schedule. |
| June 1–5 | 12 PM–5 PM | Early-season weekday hours. |
| Aug. 24–28 | Closed | Weekday late-season closure. |
| Aug. 31–Sept. 4 | Closed | Closed weekdays before final Labor Day weekend. |
| Final 2026 Weekend | Sept. 5–7 | Season ended Labor Day, September 7. |
Final schedule source: Washtenaw County park hours .
Rolling Hills Water Park Rides & Attractions
Rolling Hills works well for mixed-age groups because its core attractions range from zero-depth play to higher-energy body slides. The park is compact enough that families can use one general base rather than treating each attraction as a separate destination.
White Cap Bay
Wave pool Zero-depth edgeThe wave pool lets younger guests remain toward the shallow side while stronger swimmers move farther into the pool.
Lazy River
Family RelaxingRolling Hills has a long moving river where visitors can float between higher-energy attractions.
Plunge Peak
Three slides ThrillThe freestanding slide tower features twisting and faster body-slide experiences.
Activity Pool
Zero-depth Young kidsFeatures include a gradual entry area, bubbler-style features, geysers and water play designed with younger children in mind.
Little Dipper
Kiddie slideThe smaller slide sits in the children’s activity-pool area and is intended for shorter riders.
Slide Mountain
Body / tube slide areaA separate slide area near the wave-pool side of the park provides another option beyond Plunge Peak.
Rolling Hills With Toddlers & Younger Children
The free-under-36-inch policy makes Rolling Hills particularly relevant to families with small children, but free admission does not mean every attraction is appropriate for a child that size.
Measure at Home
A child at or below 36 inches qualifies for the published free-admission threshold, while larger slide rules use different height requirements.
Begin Shallow
Start young children in the zero-depth activity area before moving toward the wave pool or river.
Pick a Family Base
Choose one meeting point before older siblings head toward Plunge Peak or another attraction.
Best Attraction by Child’s Comfort Level
| Visitor | Good Starting Area | Next Step | What to Check |
|---|---|---|---|
| Toddler | Zero-depth Activity Pool | Little Dipper if eligible | Swim comfort and direct adult supervision. |
| Young beginner swimmer | Activity Pool | Shallow wave-pool area | Current life-jacket and supervision rules. |
| Confident child | Lazy River | Height-eligible slides | Measure before entering a slide queue. |
| Tween / teen | Plunge Peak | Wave pool / additional slides | Posted attraction rules. |
Food, Drinks & Concessions
Rolling Hills provides concessions inside the waterpark, but its current “Know Before You Go” guidance lists outside food and beverages among items that should not be brought into the waterpark area.
Concessions
Build at least one food or snack break into a long visit instead of waiting until children are exhausted.
Outside Food
Do not arrive assuming a normal picnic cooler can be taken onto the waterpark deck.
Meal Timing
A meal before entry can be useful for budget-focused families, especially with a noon opening time.
Official reference: Rolling Hills concessions information .
Shade, Seating & What You Can Bring
Rolling Hills has a large outdoor sun-deck environment. Current visitor guidance indicates that personal tents and larger shade structures are not appropriate inside the waterpark.
Bring sunscreen and plan repeat applications rather than relying on shade all day.
Check current rules before bringing umbrellas or shade gear. Large structures may be prohibited.
If shade is medically or practically important for a baby, verify permitted infant-shade equipment before leaving home.
Important Rules Before You Enter
Swimwear
Use proper aquatic swimwear and check the county’s current swimwear policy before choosing garments with exposed metal, hardware or other slide-damaging features.
Height Rules
Admission height and attraction height are different rules. A child who pays admission is not automatically tall enough for every slide.
Follow Lifeguards
Ride signs and lifeguard instructions at the attraction override online summaries.
Official check: Rolling Hills swimwear policy .
Weather, Crowds & Sold-Out-Day Planning
Rolling Hills is entirely weather-dependent. A hot summer day may increase demand, while storms or unsafe conditions can interrupt aquatic operations.
Hot Weekend
Buy ahead when available, arrive near opening and establish your family’s meeting place before attraction lines build.
Storm Forecast
Check same-day park information before driving from outside Washtenaw County.
Online Tickets
Use the county’s online ticket page rather than relying only on the assumption that same-day gate inventory will fit your plan.
Rolling Hills Water Park Map, Address & Directions
Rolling Hills Water Park sits within the larger Rolling Hills County Park. When navigating, use the full street address rather than searching only for “Rolling Hills,” because the name is used by many parks, neighborhoods and businesses.
Best Rolling Hills First-Visit Plan
Rolling Hills is easier when the family decides the attraction order before everyone changes into swimwear.
What to Bring to Rolling Hills Water Park
Pack These
- Ticket confirmation.
- Residency identification if using county pricing.
- Swimsuits.
- Towels.
- Sunscreen.
- Dry change of clothes.
- Water-friendly footwear.
- Waterproof phone pouch.
- Swim diapers when needed.
- Payment method for concessions.
Check Before Bringing
- Outside food or coolers.
- Personal shade structures.
- Large umbrellas.
- Outside flotation devices.
- Swimwear with exposed hardware.
- Glass containers.
- Alcohol.
- Items restricted by the current county rules.
What Else Is at Rolling Hills County Park?
The waterpark is only one part of the larger county park. Rolling Hills County Park also provides outdoor recreation beyond the swimming season.
Useful if your household wants a separate dry-land activity.
Walking areas extend the visit beyond the waterpark gate.
The county park includes additional outdoor recreation options.
Rolling Hills County Park remains relevant even when the summer waterpark is closed.
Planning a Michigan Waterpark Weekend?
Rolling Hills is primarily a day-trip waterpark. If your trip requires an overnight resort, indoor waterpark and a larger vacation-town experience, our Frankenmuth Waterpark 2026 comparison explains Bavarian Blast and Zehnder’s Splash Village, including day passes, hotel access and current hours.
8 Rolling Hills Mistakes to Avoid
Waterpark admission is not the only entry cost.
The lower rate is specifically for Washtenaw County residents.
A child 36″ and under enters free but is not eligible for every attraction.
Some 2026 weekdays had shorter hours or were closed.
Outside food rules differ from the broader county park.
Check the posted ride-height marker first.
Outdoor water attractions can be affected by storms.
Pick your meeting area soon after entering.
Need a Year-Round Michigan Alternative?
Rolling Hills closes after the outdoor summer season. If your Michigan trip falls in fall, winter or early spring, compare the seasonal outdoor experience with our Avalanche Bay Indoor Waterpark ticket and resort guide before choosing your destination.
Rolling Hills Waterpark FAQ 2026
How much are Rolling Hills Water Park tickets in 2026?
Waterpark admission was $12 per person for Washtenaw County residents and $16 for nonresidents. Children 36 inches tall and under were admitted free.
Do children get into Rolling Hills Water Park free?
Children measuring 36 inches tall or less qualify for free waterpark admission under the published 2026 pricing.
Is parking free at Rolling Hills Water Park?
No. Rolling Hills County Park charges separate vehicle admission. In 2026 the daily vehicle rate was $6 for Washtenaw County residents and $10 for nonresidents.
What were Rolling Hills Water Park hours in 2026?
Main summer hours were 12 PM–7 PM. Several early-season weekdays operated 12 PM–5 PM, and selected late-August and early-September weekdays were closed.
When did Rolling Hills Water Park open and close in 2026?
Opening day was May 23, 2026, and the public swimming season concluded on Labor Day, September 7, 2026.
What attractions are at Rolling Hills Water Park?
Main attractions include White Cap Bay wave pool, a lazy river, Plunge Peak waterslides, additional water slides and a zero-depth Activity Pool with younger-child water features.
Where is Rolling Hills Water Park?
Rolling Hills Water Park is inside Rolling Hills County Park at 7660 Stony Creek Road, Ypsilanti, Michigan 48197.
Can I buy Rolling Hills Water Park tickets online?
Yes. Washtenaw County provides an official online-ticket page for Rolling Hills Water Park. Check the correct date and current operating schedule before buying.
Can I bring food into Rolling Hills Water Park?
Current waterpark guidance lists outside food and beverages among prohibited items inside the waterpark area. Use the current county rules for final confirmation before packing.
Is Rolling Hills Water Park open year-round?
No. Rolling Hills is an outdoor seasonal waterpark. Its normal swimming season runs around Memorial Day weekend through Labor Day, although exact dates and schedules can change each year.
Official Rolling Hills Sources
Prices, attraction operations, season schedules and policies can change. The following Washtenaw County pages should be checked before purchasing or driving.
Independent planning guide: USWaterParkGuide.org is not Washtenaw County Parks or Rolling Hills Water Park. Ticket prices, resident eligibility, vehicle rates, annual-pass prices, operating hours, attraction availability, height rules, concessions, food restrictions, capacity policies and weather procedures may change. Confirm final information with Washtenaw County before buying tickets or traveling.