Tokyo DisneySea is a lot of fun, especially for adults. The new park, Frozen, is a must-do; the graphics are incredibly detailed and well worth the 40-minute queue. It's best to arrive after noon; in the morning, there are crowds and lines for popular attractions. Entering after 10:30 a.m. will save you from waiting in line for many popular attractions, and most importantly, you can enjoy the ride until closing time. If you arrive too early, buy an Express Pass to get through faster, otherwise waiting in line all day will be a real drain on your energy.