Waterdog Run/Bike Trail is pet-friendly. Located in Silicon Valley, this little slice of nature is a great place to bring your pooch for a wander. Water Dog Lake Park has a number of trails that wind around a lake at its center. Dogs are welcome on all of the pathways in the park. Dog owners are reminded to clean up any mess that is left behind. Waterdog Run/Bike Trail is open every day of the week from 6am to 6pm.