Helena, MT 59601
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From $14 / adult · kids under 5 free
Tickets are timed-entry on busy weekends. Recommended for ages All ages. Most family bundles include 2 adults + 2 kids; refunds typically allowed up to 24h before.
Before you continue to Cretaceous Reef Aquarium tickets
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Spinosaurus is the only known semi-aquatic dinosaur — it likely swam.
★ marks eras represented at this destination.
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Hey explorer! Imagine sea monsters from the time of dinosaurs — that's what swims (and floats!) here. Don't miss the touch pool.
Fun fact: a T-Rex tooth could be longer than a banana 🍌
A peek at what your little explorer can see, touch and try on this visit.
Cretaceous
Mosasaurus
Ocean apex predator longer than a school bus.
Jurassic
Stegosaurus
Brain the size of a walnut, body the size of a bus.
Jurassic
Allosaurus
The Jurassic's most common big predator.
Cretaceous
Tyrannosaurus rex
Could bite with the force of three grand pianos.
Fossil prep lab
Watch real paleontologists clean fossils through a viewing window.
Mounted skeletons
Walk underneath full-scale skeletal mounts of giants.
Ancient seas tank
Floor-to-ceiling tank dedicated to ocean life from the age of dinosaurs.
Learning themes families can explore together — bring them up before, during, or in the car ride home.
Earth & deep time
How rock layers and fossils record the past.
Scientific method
Observing, hypothesizing and testing like a paleontologist.
Ecosystems & habitats
Connecting dinosaur worlds to living ecosystems today.
Ocean life through time
From ancient marine reptiles to today's reefs.
Practical details for the grown-up logistics — verify with the official source before traveling.
Plan to spend
1.5 – 3 hours
Food on-site
Café & vending available
Restrooms
Family restrooms near the entrance and main gallery
Strollers
Stroller-friendly paths; rentals at front desk
What to bring
Light layers — galleries can run cool
Photo policy
No-flash photography typically allowed in galleries
Weather is illustrative — always confirm a real forecast before you go.
Cretaceous Reef Aquarium
Helena, MT 59601
Winter · Dec – Feb
Ice Age Add-On
Pop-up Ice Age gallery with mammoths and a frozen-fossil dig.
Summer · Jun – Aug
Junior Paleo Camp
Week-long day camps for ages 6–10 with real fossil prep stations.
Spring · Mar – May
Spring Hatching Days
Daily hatching demos and a baby-dino discovery cart in the main hall.
Fall · Sep – Nov
After-Hours Dino Lab
Family flashlight tours through the fossil hall, two Friday nights a month.
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Other family-friendly stops within driving range.