South Bay Beach Bike Path is a 23 mile lightly trafficked out and back trail located near Redondo Beach, CA that offers scenic views and is good for all skill levels. The trail is primarily used for walking and road biking and is accessible year-round.
You will need a bicycle to fully enjoy this path. Yes, often you'll see pedestrians but they should be paying attention to the 'bikes only' markings posted everywhere. It has amazing ocean views and should be completed at least once. Avoid the summer months if you don't want to constantly dodge tourists.
It has been a few years now since the last time I did this one. I actually went all the way to San Pedro at Point Ferman. This ride offers some beautiful ocean views and rugged coastline. Most days you can see Santa Catalina!