I work as a park police officer.. we have 3 officers, including myself, that patrol a park system for a city of approximately 120,000 people. We have a day shift (6am-2pm) and afternoon shift (2pm-10pm). Midnights are covered by city police. Luckily, we have our own take home patrol vehicles (the supervisor has a Ford F-250). Each of us patrol the city on our own, but have back up from city and county police. Sometimes back up is 30 seconds away, sometimes it's 10 minutes or more.
We're responsible for over 90 parks and properties. To give you some idea of what I patrol/respond to; approximately 15 miles of river walk/riverside trails, 4 municipal golf courses, 4 recreation centers, 5 splash pad parks, 2 public pools, 1 zoo (oldest in the state, AZA certified), 1 greenhouse & conservatory, 1 ice skating rink, 1 pavilion/rental hall, 1 fitness center, 1 softball complex (holds international, national, regional, and local tournaments - hosts US Olympic Team), 1 nature preserve and nature center, 1 tennis center (14 competition courts, holds local and regional tournaments), 1 skate park (holds regional tournaments) and North America's first man made white water rafting waterway (used for international/national competitions, river rescue trainings, etc - hosts US Olympic Team).