Hiya Melissa!
Thanks for stopping by and a warm welcome to planDisney! We're so happy that you brought your question here to us. Do you have a visit to the
Disneyland Resort coming up? It's a fantastic year to visit because there's so much happening and you won't want to miss out on anything!
As you already know, a
ticket and park reservation are required for entry into either
Disneyland Park or
Disney California Adventure. If you were to leave the Parks to Park Hop or return later that day, you are
not guaranteed re-entry as it is always subject to park capacity. However, the good news is that this is an extremely rare occurrence and if you have a Park Hopper, you could always visit the alternate Park. Plus, there's plenty to see at the
Downtown Disney District while waiting for your Park to open again.
If you are planning on visiting the Happiest Place on Earth this year, be sure to take in the decorations and special foods they're offering for the
Disney100 Celebration!
Mickey's Toontown is set to re-open very soon and the new attraction
Mickey & Minnie's Runaway Railway has quickly become one of my favorites. Like I said, there's a lot to see and do at the Disneyland Resort this year!
I hope I was able to answer your question, Melissa, and that you get a chance to visit!
See Ya Real Soon!
-Al