Physically, the two Disney theme parks sit next to each other. But from the front of Tokyo Disneyland, Tokyo Disneysea is about five to seven minutes by train. The distance is about a mile from each other. As mentioned a while back, both Disney theme parks are next to each other. It is only their entrances that are separate. When going from one theme park to another, you must ride a monorail. There are monorail rides that connect the two entrances. Yes, you can walk. But the distance from one Disney theme park to the other is about a mile. Walking from one entrance to the other takes about 20 to 30 minutes in total. You should also note that the entrances are on opposite ends. For some travelers, staying within the Disney properties is far better. This allows you to have free and unlimited access to tram transportation. When booking in Disney hotels, Miracosta in Disneysea is a perfect choice. Booking here comes along with rail passes for those checking in. The tram, as earlier discussed, connects the two theme parks. Another option is to buy a two-day pass. This may be another expensive option. But if you have the luxury of time, you can visit both theme parks and spend a day in each.