Complex sentence: The marsh wetlands of Udalls Cove measure up to 100-acres and is a haven for birds and underwater life, as well as a favorite spot for school children with an interest in studying them.
Split into simpler sentences: The marsh wetlands of Udalls Cove measure up to 100-acres. They are a haven for birds and underwater life, as well as a favorite spot for school children with an interest in studying them.