Hello Dina, and thank you for visiting the Disney Parks Moms Panel.
You and your son will have a delightful two-day trip to the Disneyland Resort. Rest assured that you will be able to keep your backpack with you on the rides. I carry a backpack on each Disneyland trip, and I've never encountered any issue with taking it on rides. A backpack is a great place to stash snacks, water bottles, sunscreen, and light jackets. However, if there are things you would like to stow away,
lockers are provided at both
California Adventure and
Disneyland for a small rental fee.
Some rides will provide you a small mesh pocket to fit your belongings in. If your backpack is too big, it's no issue to tuck it behind your leg. Because Guests WILL get wet and possibly soaked on
Grizzly River Run, lockers are available for Guests to use while they enjoy the ride. They are located at the ride entrance and free for the first two hours.
I hope this information is helpful in planning your upcoming trip with your son. Wishing you an
Unforgettable trip! Please come back to visit me if you have further questions.
Have a magical day,
Kiki