If you want to travel to these places, it is best to have a car or use a ride-sharing service. The estimated total cost for transportation would be $50, the distance between the parks is not excessive, and the time spent on the road is minimal.
If you're short on time, consider skipping the Bell Gardens Golf Course and spending more time at the parks or vice versa. Additionally, bring insect repellant, sunscreen, and water bottles to the parks. Don't forget to carry snacks and a picnic lunch to make the most of your day exploring nature.
The closest airport to Bell Gardens is Los Angeles International Airport (LAX) in Los Angeles, approximately 15 miles away from the city center.