Thunder Lagoon Waterpark | Water Slides & Lazy River | Fenwick Island, DE

🌊 2026 Season Opens Memorial Day Weekend · Multi-Day Passes Save Up to 40%! View All Pricing →

🌊 Open Memorial Day through Labor Day

Fenwick Island, Delaware · Near Ocean City, MD

Thunder Lagoon
Waterpark

Six thrilling water slides, a 400-ft tropical lazy river, the legendary tipping Viking ship, and pools for every age. Delaware's best waterpark experience is right here on the shore.

📞 Call for Info: (302) 539-4027 🎫 View 2026 Pricing

Water Slides

400ft

Lazy River

250gal

Viking Ship

Parking

Thunder Lagoon Waterpark water slides and lazy river in Fenwick Island Delaware

6 Slides · All Ages · All Thrills

Everything Inside Thunder Lagoon

From heart-pounding body slides to the relaxing lazy river, Thunder Lagoon has something for every member of the family.

400-Foot Tropical Lazy River

Float your way around a fully themed 400-foot lazy river complete with lush tropical landscaping and interactive water gadgets along the way. Bring your tube and drift into full relaxation mode while the kids go wild.

All Ages Inner Tubes Available Tropical Theme

Black Hole body slide at Thunder Lagoon Waterpark Fenwick Island

The Black Hole Body Slide

Dive into complete darkness on Thunder Lagoon's most daring enclosed body slide. Twist and turn through a pitch-black tube before shooting out into the splash pool. Not for the faint of heart.

Twister Doubles Slide

The only slide at Thunder Lagoon where parents and little ones ride together. Hop into a double inner tube and spiral down the Twister together. Perfect for first-timers and toddlers ready for their first big slide.

Tipping Viking ship at Thunder Lagoon dumping 250 gallons on guests

The Tipping Viking Ship

The crown jewel of Thunder Lagoon. Watch 250 gallons of water build up in the massive Viking ship overhead, then come crashing down without warning. The anticipation is half the fun. Everyone gets soaked. No exceptions.

2800 square foot activity pool at Thunder Lagoon Waterpark

2,800 Sq Ft Activity Pool

A massive activity pool packed with splash features, water jets, and room to roam. Great for older kids and tweens who want to splash around freely. Lifeguards are always on duty.

800 square foot kiddie pool at Thunder Lagoon Waterpark for toddlers and young children

800 Sq Ft Kiddie Pool

A safe, shallow splash zone designed specifically for the little ones. Toddlers and young children can wade, splash, and play comfortably while parents relax nearby. Thunder Lagoon's most popular spot for families with babies and toddlers.

2026 Admission

Waterpark Pricing

Choose your session and jump in. All tickets are purchased at the gate on arrival. No reservations required.

👤

Adults

42" and taller

⏱ 2 Hours $28

⏱ 4 Hours $34

⚔ Multi-Day Pass: Come Back and Save

Purchase your first visit at full price, then return for less every day after. Perfect for families spending the whole week at the shore. Passes are non-transferable and not valid same day. Valid 2026 season.

Day 2

20% Off

Day 3

40% Off

Tickets purchased at the gate. Gift cards accepted. Food and drinks available at adjacent concessions.

🎁 Buy a Gift Card 🎫 See All Attraction Pricing

Save More

Coupons & Special Deals

Print or show this coupon on your phone at the gate. No need to pre-purchase.

20-40% OFF

Multi-Day Pass

Purchase one pass at the standard price and enjoy a 20% discount on the second day, along with a 40% discount on the third day.

Not applicable for use on the same day.
Valid for additional visits only.
Passes are non-transferable.
Valid for the 2026 season.

🎫 Show Coupon at Gate

⚔

Make It a Full Day

Combine Thunder Lagoon with Viking Golf and Go-Karts next door for the ultimate Fenwick Fun day. Gift cards accepted at all attractions.

🎁 Buy a Gift Card 🎫 See All Pricing

Inside Thunder Lagoon

See It Before You Splash In

Thunder Lagoon Waterpark water slides and lazy river overview Fenwick Island Delaware

Water slides at Thunder Lagoon Fenwick Island Delaware

Families enjoying Thunder Lagoon Waterpark near Ocean City MD

Thunder Lagoon activity pool and splash zone Fenwick Island

Kids at Thunder Lagoon Waterpark Delaware

Before You Visit

Everything You Need to Know

🏊 What to Bring

✓Swimsuit and towel
✓Water shoes or flip flops (recommended on hot days)
✓Sunscreen — reapply throughout the day
✓Change of clothes for after
✓Cash or card for concessions and extra rides
✓Hat and sunglasses for lounging

📋 Park Rules

🚫 No glass containers

🚫 No diving in shallow areas

🚫 No running on pool decks

✅ Outside food and drinks allowed

✅ Lifeguards on duty always

✅ Lounge chairs available

✅ Ample free parking on-site

🍴 Concessions food nearby

👳 Height Requirements

🌊
Lazy River: All ages welcome. Young children must be supervised by an adult.
🌊
Kiddie Pool: Designed for children under 42". Adults may accompany small children.
🌊
Twister Doubles Slide: Small children may ride with a parent or guardian.
🌊
Black Hole & Other Slides: Height and age requirements apply. Ask staff at the entrance for current requirements.

🕐 Hours & Season

📅
Season: Open Memorial Day Weekend through Labor Day, weather permitting.
📅
Session Times: 2-hour and 4-hour passes available. Check in at the gate for current session start times.
🕐
Arrive Early: We recommend arriving at opening on busy summer weekends to get your preferred session time.
📞
Questions? Call us at (302) 539-4027 before you visit.

🎉 Planning a Party or Group Event?

Thunder Lagoon is the perfect venue for birthday parties, school groups, family reunions, and corporate outings. Call us to build a custom package for your group. We'll make it unforgettable.

📞 Call (302) 539-4027 🎫 See Group Pricing

Quick Answers

Thunder Lagoon FAQ

What are the 2026 waterpark admission prices?

Adults (42" and taller): $28 for 2 hours, $34 for 4 hours. Children (under 42"): $12 for 2 hours, $15 for 4 hours. Seniors (60+): $19 for 2 hours, $23 for 4 hours. All tickets purchased at the gate.

Do you offer all-day passes?

Thunder Lagoon offers 2-hour and 4-hour timed passes only. We find timed sessions keep the park comfortable and enjoyable for everyone. Many guests find a 2 or 4 hour session is the perfect amount of time to experience everything.

When does Thunder Lagoon open and close for the season?

Thunder Lagoon Waterpark is open Memorial Day Weekend through Labor Day, weather permitting. Call (302) 539-4027 for daily hours and any weather-related closures.

Can I bring outside food and drinks?

Yes! Outside food and drinks are welcome at Thunder Lagoon. No glass containers please. Concession stands adjacent to the waterpark serve burgers, fries, pizza, funnel cakes, and Hershey's ice cream if you prefer to grab something on-site.

Is Thunder Lagoon good for toddlers and young children?

Absolutely. Thunder Lagoon is one of the most toddler-friendly waterparks on the Delaware shore. The 800 sq ft kiddie pool, lazy river, and Twister doubles slide are all perfect for young children. Lifeguards are on duty at all times.

Is parking free at Thunder Lagoon?

Yes, parking is always free for Thunder Lagoon guests. Ample on-site parking at Fenwick Fun. No meters, no fees, no stress.

Can I use the multi-day pass discount on the waterpark?

Yes! Our multi-day pass deal applies to the waterpark. Return on Day 2 for 20% off and Day 3 for 40% off your admission. Passes are non-transferable and not valid for same-day use. Ask at the gate on your first visit.

Keep the Fun Going