What is known as the "swim beach", which is the large sand beach near the main entrance of the park is not open. Sadly it wont be open until 2019. If you have a minute you can check out the Chatfield State Park website and there is a link to the construction updates. Its actually a really robist websites that will give you lots of info and details about the capitol improvements they are making in the park.
I believe the one on the south side near the marina is.
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