Looking for sandy trails in the Santa Monica mountains for training

Hello Hikers. I was hoping someone could recommend some sandy trails in the Santa Monica mountains. I just went backpacking in Utah at Coyote Gulch and the trails were basically sand. I found it hard work on my hip adductors to hike through sand, so I wanted to train on some more sandy hikes locally. Any suggestions for trails where a substantial portion of the hike is over a sand covered trail? I could of course walk on the beach, but I wanted a bit of up and down effort too.