Best kept secret bike routes in Long Beach?

Hey everyone, I've been riding the Marvin Braude Bike Path for years but I'm looking to mix things up. What are your favorite Long Beach routes that most people don't know about?

I've done the obvious ones — Marvin Braude, San Gabriel River Trail, Naples Island loop — but I feel like there must be some hidden gems out there. Anyone have recommendations for routes that are a bit more off the beaten path but still safe and scenic?

Looking for anything from 5-20 miles. I ride a hybrid bike so I can handle paved and light gravel.