16070
It includes a Nature Study Center and small museum , bird watching where visitors may see in the summer and spring months Osprey who live in man-made shelters on the river , hiking on nature trails , a playground and picnic area .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 None