1. Dunn's River Falls: This natural wonder is a great attraction for families with young children as they can climb the terraced waterfalls or enjoy the natural pools at the base. It makes for a fun and adventurous day out for the whole family.

2. Seven Mile Beach: This world-famous beach in Negril is a great place for families with young children as they can enjoy the crystal-clear waters and soft white sand. The beach is also home to many water sports activities suitable for children, such as snorkeling and parasailing.

3. Blue Hole: The Blue Hole is a beautiful natural swimming pool in Ocho Rios, surrounded by lush greenery and cascading waterfalls. Children will enjoy swimming in the crystal-clear water or jumping off the cliffs into the pool. However, it's important to note that it may not be suitable for very young children.

4. Montego Bay: Montego Bay is a popular tourist destination in Jamaica, with many family-friendly attractions such as the Montego Bay Marine Park, which is home to over 80 species of marine life. The beach is also suitable for children, and there are many water sports activities available.

Overall, Jamaica offers many attractions suitable for families with young children. With its natural wonders, beautiful beaches, and vibrant culture, Jamaica is a great destination for a family vacation.