Yes, you can absolutely visit both "Disneyland" parks, but the experience depends on which resort you are visiting. At the Disneyland Resort in California, there are two separate parks: Disneyland Park and Disney California Adventure. You can visit both in a single day if you purchase a "Park Hopper" ticket, which in 2026 allows you to cross between the two gates starting at 11:00 AM. They are located directly across from each other, making "hopping" very easy. If you are referring to the global parks, you can visit the original in California and Walt Disney World in Florida, though they are 2,500 miles apart and require separate travel. In a broader sense, "Disney Parks" also includes international locations in Paris, Tokyo, Hong Kong, and Shanghai. For a single-trip experience, the California and Paris resorts are the easiest for "hopping" between two distinct gates, whereas the four parks in Florida require bus, monorail, or Skyliner transportation to navigate the massive property.