http://visitdorchester.org/about-dorchester/visitor-center/
Sailwinds Park (named for the large sail-like structure here) and Visitors Center is located on the Choptank River, next to the bridge in Cambridge, MD. The visitor center is open 9-5 daily, and is the only available nearby restroom. The playground has just been updated, and has a big pirate ship and other pirate themed toys. There are several tables, benches and large swings located around the playground, which also has bouncy rubber underfoot, so it is safer for little ones.