Since you said LB and only one I know of is Golden Shores in LB, yes we have stayed there and liked it. Security gate. Fairly nice park. My only complaint is if you stay there more than a few days they play musical RVs. Don't know why because they do not promise any particular site. We have had to move several times in the past from site to site. PITA. I think some people get special priorty on sites. Others don't. Other than that it is a nice park.
Ignore this. Since you said Long Beach assumed you meant Long Beach, CA not a local rv park name. Sorry