Hey Carlos!
Welcome to
planDisney!
You and your triplets must be so excited to visit
Disneyland Park and
Disney California Adventure Park. When my kids were younger, a stroller was always a must for us. Not only does it give the kids a chance to rest their feet, but it also allows you to carry all of those extra items that you may need for them. At this time all wagons, including stroller wagons, are not allowed into the theme parks and are on the list of prohibited items.
My recommendation for you would be a double stroller and a single stroller. I hope you’ll have another adult with you that can help push one of the strollers. If you don’t want to purchase these or don’t have access to a different kind of stroller, you can rent them once you get here. Double strollers and single strollers are both available at Stroller Rentals right outside the gates of Disneyland Park. You could always bring your stroller wagon to help you while you travel to get here and then rent the strollers to use in the parks. Don’t forget about the complimentary Baby Care Centers in both parks that are available for things like changing rooms, nursing rooms, feeding areas with high chairs and they even have toddler-sized toilets.
Well Carlos, I hope this information better helps you plan your trip.
Remember, always believe in the Magic!
Andres