Castle Rock is home to many types of life. There are many species of plants, insects and animals found throughout the park. The animals of the park have always drawn a great deal of interest. Anywhere in Castle Rock you may have encounters with beautiful birds, mammals or reptiles if you are patient and quiet enough. Though sometimes you will simply run across animals in the park even if you are noisy. Especially the reptiles who like to lay in the sun on the warm trails. The prints of some animals can be found on the trails and sometimes when hiking you may even come across animal bedding sites.