Golf Carts can be rented by the hour at either http://www.catalinaislandgolfcart.com/ or https://www.lovecatalina.com/things-to-do/things-to-do-by-land/bikes-golf-carts/

Catalina has a local taxi service that is very inexpensive and easy to use. You will need to download the the app or contact through catalinataxiandtours.com

Catalina offers a free small shuttle service through ridecircuit.com