Great choice! Your Costco 3-Day LEGOLAND® California + LEGOLAND® Water Park + SEA LIFE® Aquarium ticket gives you access to three days of fun across all three attractions. Here’s everything you need to know to make the most of your visit:
🎟️ Ticket Overview
Includes: 3 days of admission to:
- LEGOLAND® California
- LEGOLAND® Water Park
- SEA LIFE® Aquarium
- Expiration Date: All visits must be completed by October 31, 2025
- Blackout Dates: Not valid on October 4, 11, 18, or 25, 2025
- Same-Day Visits Required: Water Park and SEA LIFE must be visited on the same day as your LEGOLAND visit
- Visit Window: 2nd and 3rd visits must occur within 60 days of your first visit
📅 Reservation Required – Step-by-Step Guide
To use your Costco ticket, you must make a reservation for each visit in advance. Here’s how:
🔹 Step 1: Access the Reservation Portal
- Go to the LEGOLAND Reservation Portal here.
🔹 Step 2: Enter Ticket Details
- Enter the number of guests (1 per ticket)
- Input the barcode number found on each Costco ticket
🔹 Step 3: Book Your First Visit
- Select your first visit date for LEGOLAND California
- LEGOLAND Water Park and SEA LIFE Aquarium will automatically be included for the same day
- Agree to the Terms & Conditions and proceed to checkout
- Enter guest information and complete the reservation
🔹 Step 4: Book Your 2nd and 3rd Visits
- After completing your first reservation, return to the portal
- Click “Requires Reservation” next to your ticket to begin booking your additional days
- Use the “Modify” option to select your 2nd and 3rd visit dates
- Remember: These must be within 60 days of your first visit and before October 31, 2025
- Save your changes and download or print your updated reservation confirmations
🔹 Step 5: Bring the Right Documents
For each visit, you must bring:
- Your Costco ticket
- Your reservation confirmation
- A valid photo ID (tickets are non-transferable)
🔁 Need to Change Your Visit Date?
You can reschedule your reservation up to two times, as long as it’s at least 1 day before your scheduled visit:
- Go to the Booking Portal here
- Enter your confirmation number and the email address used during booking
- Click the calendar icon next to your current reservation
- Select a new date and click Save Changes
- You’ll receive a new confirmation email
🚗 Additional Information
- Parking is not included and must be purchased separately
- Tickets will not be replaced if lost or stolen
- Entry is not guaranteed during periods of high attendance
- Children under 12 must be accompanied by an adult
- Guests ages 2 and up require a ticket
📱 Plan Ahead
- Check LEGOLAND.com/hours for park hours and operating days
- Download the LEGOLAND® app for maps, wait times, and show schedules
🎉 Enjoy your adventure! With three days of rides, slides, and sea creatures, your Costco ticket is your passport to a summer full of LEGO® fun.