There are lots of fun, interesting, and educational things you can do on the refuge.  Keep in mind, if an activity is not wildlife related and doesn't help in the protection or understanding of wildlife or their habitat, there are probably refuge rules governing this activity.  Please check with the refuge management before participating in an activity that could harm the environment or yourself.  There are plenty of activities at Montezuma National Refuge for you to enjoy.  Be safe and have fun!