Hunt, Colour & Win! Sea Monsters: Prehistoric Ocean Predators

Step back millions of years to a time when giant marine reptiles ruled the seas. While dinosaurs roamed the land, enormous ocean predators—some growing to over 20 metres long—hunted beneath the waves.

Discover the incredible world of prehistoric sea monsters through immersive displays, fascinating specimens from the WA Museum collection, and a hands-on touch table featuring fossil impressions and 3D models of ancient marine reptiles.

Dates: 12 August – 9 October 2026

Opening Hours: Tuesday–Friday, 10am – 3pm

Suitable for: Children aged 5–12 years (some adult assistance may be required)

Cost: Free

Accessibility

• Wheelchair accessible 
• ACROD parking 
• Accessible toilet onsite

Great Mythical Sea Monster Hunt

Young explorers can also join the Great Mythical Sea Monster Hunt, a fun self-guided activity throughout the museum. Complete the hunt for your chance to win a LEGO® Creator 3-in-1 Fierce Shark with Treasure Chest set.

Perfect for curious minds of all ages, this exhibition offers a rare opportunity to come face-to-face with some of the most fearsome creatures ever to inhabit our oceans.

Prize Draw: Tuesday, 13 October 2026 at 11:00 am.

Sea Creatures Colouring Competition

Bring these amazing sea creatures to life with colour!

Pick up a colouring sheet from Mandurah Museum, any Mandurah Library or download one from the City of Mandurah website.

Return your completed masterpiece to the museum or any Mandurah Library by Friday, 16 October 2026 to be in the running for some fantastic prizes.

Prize

• Family pass with Mandurah Cruises valued at $98

One winner will be selected from all of the entries.

Judging will take place on Tuesday, 20 October 2026, and winners will be contacted.