"The Happiest Place on Earth" has become one of the most crowded.

Tourists and annual pass holders are flooding Disneyland and California Adventure in large numbers, causing headaches for guests and park officials. Waits for rides often stretch over an hour, and visitors are having to park in remote structures, particularly on Sundays.

Industry experts say the crowding problem leaves Walt Disney Co. with two options: Keep hiking rates until attendance becomes manageable, or expand the park.

Over the weekend, the Anaheim park raised single-day ticket prices by $4 to $96 and temporarily halted new sales of a popular annual pass for Southern California residents. Disneyland officials say they have no current plans for a new Anaheim park, but that hasn't stopped speculation.