Yes, guests are allowed to bring their own stroller and car seat on board a Disney Cruise ship. Disney Cruise Line recommends that families bring their own stroller, as it can be useful for navigating the ship and exploring ports of call. The company permits collapsible strollers, which can be stored in designated areas on the ship.
As for car seats, they are also welcome, particularly for use during transfers and excursions that involve vehicles. However, it is important for guests to note that car seats are not typically used on board the ships, as children are often supervised in designated areas.
For specific guidelines regarding sizes and types of strollers and car seats allowed, guests may want to check the current information on the Disney Cruise Line website. This will provide the most accurate and updated details pertaining to guest policies.